Red Hat Enterprise Linux 10
Monthly
SSSD configured with the Microsoft Entra ID identity provider fails to neutralize single quotes in lookup names before embedding them into Microsoft Graph OData queries, enabling an authenticated local attacker to inject filter syntax. This can broaden user or group searches, leading to information disclosure of unintended directory objects and a denial of service through excessive processing and cache population. The CVSS vector (AV:L/PR:L) confirms the attack is local and requires low privileges, and exploitation is only possible when the non-default Entra ID backend is enabled; no public exploit or active exploitation is reported, and no EPSS score was provided.
Denial of service in SSSD allows a local, already-authenticated user who can reach the PAM responder and complete a GSSAPI authentication request to send a follow-up request over the same connection, dereferencing freed cached connection state and terminating the service, which disrupts system authentication. Per the authoritative assessment the issue is rated CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H): it is local-only, requires valid low-level credentials on the host, and is constrained by high attack complexity because the dangling-pointer dereference depends on request timing and sequencing over a reused connection. Impact is availability-only - no confidentiality or integrity effect - and no public exploit identified at time of analysis (no CISA KEV listing and no publicly available exploit code in the provided intelligence).
Denial of service in SSSD (the System Security Services Daemon) allows remote unauthenticated attackers to crash the daemon by presenting a certificate that is missing the expected Security Identifier (SID) extension during authentication or lookup operations. Only deployments explicitly configured with SID-based certificate mapping rules reach the vulnerable code path, since the certificate-to-user lookup logic dereferences the SID extension without first confirming it exists; standard installations that do not use SID-based certificate mapping are not affected. The flaw is rated CVSS 5.9 (AV:N/AC:H/PR:N/UI:N/C:N/I:N/A:H, availability-only) and, per available intelligence, no public exploit code exists and exploitation has not been confirmed as active - no public exploit identified at time of analysis.
Denial of service in SSSD's autofs responder allows a local attacker with an existing account on the host to crash the responder process by writing a specially crafted request containing an invalid packet length to its UNIX domain socket. The malformed length triggers an integer underflow that produces an out-of-bounds read (CWE-125), terminating the responder and disrupting automount map lookups; there is no confidentiality or integrity impact and no remote vector. Exploitation requires the autofs responder to be enabled in sssd.conf and local reachability of its socket (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, 5.5); no public exploit code and no confirmed active exploitation were identified at time of analysis. Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 (via packaged SSSD) are listed as affected.
Access control bypass in SSSD when configured with non-default ordering that evaluates password-expiration warnings before restrictive access rules allows remote authenticated users with expired passwords to gain unauthorized access to protected systems via alternative authentication methods such as SSH public key authentication. This flaw (CWE-393) affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 deployments using LDAP access control. Exploitation requires a specific non-default configuration, an expired password, and a non-password authentication path, making it a moderate conditional risk; no public exploit identified at time of analysis.
SSSD's NFS idmap plugin contains an out-of-bounds write (CWE-787): when a cached user or group name is larger than the destination buffer it is copied into, the size check fires but the copy proceeds anyway. An authenticated, low-privileged local attacker can request identity lookups that resolve to such oversized cached entries, crashing the identity-mapping service (denial of service) and potentially corrupting adjacent process memory; the attack is local-only and depends on the oversized-cache precondition, giving it high attack complexity (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H, 5.8). No public exploit code has been identified at time of analysis and the issue is not listed in CISA KEV.
Local denial of service in the SSSD Kerberos Credential Manager (KCM) responder allows an authenticated local user to exhaust host memory and make the service unresponsive by holding a persistent connection open while repeatedly storing and destroying Kerberos credentials. The flaw is a resource-lifecycle defect (CWE-772): cached objects are not released when credentials are removed, so memory grows monotonically until the responder stalls. Exploitation requires a valid local account and sustained store-then-destroy activity, yields availability impact only (CVSS 5.5, AV:L/PR:L/UI:N/A:H), and does not provide code execution or privilege escalation; no public exploit code or confirmed active exploitation was identified at time of analysis, and systems that do not use the KCM responder are not affected.
The SSSD Kerberos Credential Manager (KCM) responder can be crashed by an authenticated local user who holds a renewable Kerberos ticket-granting ticket, because a deferred callback in the TGT renewal path dereferences memory that has already been freed. Exploitation is conditional on the host being explicitly configured for KCM-based credential renewal (a non-default, feature-dependent prerequisite), and the assessed vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H (4.7) reflects local access, high attack complexity, and an availability-only impact confined to the sssd-kcm service. There is no public exploit identified at time of analysis and no confirmed active exploitation (CISA KEV); overall this is a medium/low-priority denial-of-service issue rather than a high-CVSS/low-real-risk outlier.
Authentication bypass in SSSD permits a user with valid credentials for an already-expired account to authenticate to the system when SSSD is configured to enforce account expiration using LDAP shadow attributes and the expiration value is stored as zero. This moderate-severity logic flaw (CVSS 5.4, CWE-193) affects Red Hat Enterprise Linux 6, 7, 8, 9, and 10, as well as Red Hat OpenShift Container Platform 4; exploitation requires the non-default shadowExpire=0 configuration and valid credentials for the expired account. No public exploit code or active exploitation has been identified at time of analysis.
Denial of service in SSSD's autofs responder allows an authenticated local unprivileged user to repeatedly request master automount map updates, triggering global cache invalidation and forcing repeated backend directory lookups, which degrades automount availability and elevates resource consumption. Affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 when SSSD-backed automount maps are served from a backend directory provider such as LDAP or Active Directory. This is a moderate-priority local availability issue (CVSS 5.5) with no public exploit code identified at time of analysis.
Memory exhaustion in the SSSD autofs responder can let a local, authenticated unprivileged user deny service on affected hosts by holding an open client connection while repeatedly submitting valid requests, since per-request memory is only reclaimed when the connection closes. The flaw affects SSSD deployments on Red Hat Enterprise Linux 6 through 10 and Red Hat OpenShift Container Platform 4, but the vulnerable code path is only reachable when the autofs responder is explicitly enabled in sssd.conf - a non-default configuration. Exploitation is limited to local access (AV:L/PR:L) with no impact on confidentiality or integrity, so it is correctly rated medium (CVSS 5.5); no CISA KEV entry and no public exploit code have been identified at time of analysis, and a realistic impact generally requires a shared, multi-user host where one user's resource consumption degrades service for others.
Crashing the SSSD autofs responder process via a crafted request to its UNIX socket allows a local, low-privileged attacker to cause a denial of service on affected Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 systems. The vulnerability stems from improper buffer offset calculation during request parsing, leading to an out-of-bounds read (CWE-125) that terminates the responder process; it carries a CVSS 3.3 (Low) score with no confidentiality or integrity impact. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and the autofs responder service must be enabled for the flaw to be exploitable.
A local, low-privileged user can crash the sssd authentication daemon by submitting a crafted passkey (FIDO2/WebAuthn) authentication token that omits expected null terminators, causing an out-of-bounds read and terminating the service, which disrupts authentication for all users relying on that host. Rated CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), the flaw is purely an availability issue confined to systems where sssd's passkey authentication path is configured and reachable; there is no confidentiality or integrity impact and no remote or unauthenticated route. At the time of analysis, no public exploit code has been identified and there is no confirmed active exploitation (not listed in CISA KEV), and no vendor-released patch has been identified.
Argument injection in the OpenPrinting CUPS mailto notifier can let a low-privileged user or authorized subscription creator influence the configured sendmail command when CUPS email notifications are enabled. Exploitation requires a crafted notify-recipient-uri beginning with '-' and an MTA that interprets it as an option; the assessed risk is low because email notification is non-default, CUPS is typically local-only (AV:L), complexity is high, and impact is limited to low confidentiality and integrity in the assessed vector. No public exploit identified at time of analysis. Affected deployments include upstream OpenPrinting CUPS and CUPS in Red Hat Enterprise Linux 8, 9, 10, and Red Hat Hardened Images.
Denial of service in FreeType's CID-keyed font loader allows attackers to exhaust memory and CPU by supplying a crafted font that triggers repeated allocation and decryption of subroutine data across multiple font dictionaries, causing the consuming application or service to hang or terminate. The issue is rated CVSS 5.5 with availability-only impact (A:H, C:N/I:N) and is gated by user interaction - someone or some automated process must actually load and parse the malicious font, which can be delivered by embedding it in a document, web page, or other parsed content. No public exploit code and no confirmed active exploitation were identified at time of analysis, but the Red Hat advisory points to an upstream FreeType fix commit (f3ca71c9900fe860849b3163a6e2c1e765b291d9) and tracks the flaw under Bugzilla 2462295, so a patched release should be expected; the practical risk is highest for unattended font- or document-processing pipelines rather than interactive desktop use.
GEGL's Radiance HDR loader reads past the end of a memory-mapped image when a crafted .hdr file declares a scanline width larger than the actual data present in an uncompressed scanline, crashing the application that consumes the library - most notably GIMP, which uses GEGL for image processing. Any local user who opens such a file is affected; no authentication is required to the library, but the attacker must convince a victim to open the crafted file (UI:R), and the impact is availability-only (CVSS 5.5, AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). No public exploit code has been identified at time of analysis and the issue is not listed in CISA KEV, consistent with a low-priority, local denial-of-service rather than a code-execution primitive.
HTTP request smuggling in libsoup's SoupServer - as shipped in Red Hat Enterprise Linux 6, 7, 8, 9, and 10 - allows remote, unauthenticated attackers to have an attacker-controlled HTTP request processed as an unintended subsequent request on a keep-alive connection. The issue triggers when an HTTP/1.x client sends 'Expect: 100-continue' with a declared body and the SoupServer-based application issues an early final (non-1xx) response before that body is read; SoupServer then neither drains the body bytes nor closes the connection, so the leftover bytes are parsed as the next request. Rated CVSS 3.1 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N), the flaw carries limited integrity impact on request handling while leaving confidentiality and availability unaffected, and it is inert unless the specific combination of keep-alive, a declared body, and an early final response is present. No public exploit code and no confirmed active exploitation were identified at time of analysis.
Opening a crafted uncompressed DDS image in GIMP triggers a one-byte heap out-of-bounds read in the file-dds plug-in, which can crash the plug-in process. The flaw requires a local user to open the malicious file (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L), and the crash is non-deterministic because it only occurs when the byte past the pixel buffer lands on an inaccessible memory page; no information disclosure or code execution has been demonstrated. No public exploit code has been identified at time of analysis, and while downstream tracking covers Red Hat Enterprise Linux 6 through 10, the availability-only impact keeps real-world risk low and the 'RCE', 'Buffer Overflow' and 'Information Disclosure' tags attached to this record are not supported by the assessed vector.
Out-of-bounds heap read in GIMP's TIM image loader is triggered when a user opens a crafted 4bpp TIM image that is promoted to an RGBA layer, causing the file-tim plug-in to allocate an undersized row buffer and then process it with the larger RGBA row size. The result is disclosure of adjacent heap memory into the decoded image and a possible plug-in crash, with exploitation requiring local access and victim user interaction (CVSS 4.4, CWE-125). No public exploit is identified at time of analysis, and impact is bounded to partial confidentiality loss and availability loss rather than code execution.
Deleted or deprovisioned users can retain authorization on hosts running SSSD with the LDAP access provider when ldap_access_order includes ppolicy or lockout, because a user lookup that returns zero results trips a fail-open path that reports success and caches an allow decision. A remote attacker who already holds valid account context on the SSSD-managed host (authenticated, PR:L) can exploit this after offboarding to keep reading information and make limited modifications, giving low confidentiality and integrity impact (CVSS 3.1 5.4 Medium). The flaw only affects non-default access configurations that explicitly enable ppolicy/lockout ordering, and no public exploit identified at time of analysis.
A stack buffer overflow in libstoragemgmt's SCSI VPD page 0x80 serial-number parser lets an attacker who controls a local or virtual storage device crash or destabilize the host process that enumerates that device, yielding a denial of service with no confidentiality or integrity impact (CVSS 3.1: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, base 5.5). Exploitation requires low privileges on the host (PR:L, so an authenticated/local actor) plus the ability to attach or present a device, and it only triggers when the affected process actually queries the device's serial number - the vector is local, not remotely reachable over a network. No public exploit code was identified at time of analysis and there is no confirmed active exploitation (CISA KEV); the practical risk is concentrated in environments that enumerate untrusted or attacker-attachable storage, such as multi-tenant virtualization or hosts that accept hostile removable, iSCSI, or hypervisor-presented disks.
Isochronous OUT stream handling in usbredir can leave a stream's single transfer buffer permanently unsubmitted when a transfer count of 1 is used, which defeats the bounds check in usbredirhost_iso_packet() and lets a usbredir peer write beyond the end of the packet descriptor array on every subsequent isochronous packet. The flaw is an out-of-bounds write (CWE-787) affecting usbredir as shipped in Red Hat Enterprise Linux 6 through 10, and the published CVSS:3.1 vector (AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H, score 4.1) reflects a local, high-complexity, privileged trigger path whose dominant impact is availability loss rather than code execution. No public exploit identified at time of analysis, and the bug is not listed as confirmed actively exploited (CISA KEV); the realistic risk is materially lower than the raw memory-corruption classification suggests.
Stack-based buffer overflow in fetchmail when built with NTLM support allows a malicious or compromised mail server to trigger memory corruption by sending a crafted NTLM Type 2 challenge, potentially leading to remote code execution, authentication failure, or process termination. Exploitation requires fetchmail to be built with NTLM and configured to authenticate via NTLM against an attacker-controlled or man-in-the-middle'd server; no public exploit code or active exploitation has been identified. The flaw carries a CVSS score of 8.1 with high confidentiality, integrity, and availability impact, though reliable RCE is limited by stack-frame layout and modern memory hardening (stack canaries, ASLR, FORTIFY_SOURCE) on RHEL builds.
Local low-privileged users on Red Hat Enterprise Linux 9 and 10 systems running the cockpit-files module can abuse the privileged 'Paste as owner' feature by pre-staging a directory that contains a symbolic link, causing ownership changes to be applied to files outside the intended paste destination and thereby compromising data integrity (and, in some cases, confidentiality if the new ownership grants unauthorized read access). Exploitation is not remote - it requires local, authenticated access (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L) and only completes when a more privileged operator performs the paste and actively selects a non-original owner, which is the primary limiting factor; no public exploit code and no confirmed active exploitation were identified at time of analysis. The issue is a genuine but locally scoped privilege/integrity problem, not a high-urgency remote threat.
A symlink race condition (CWE-363) in cockpit-files, the file-management component shipped with the Cockpit web console on Red Hat Enterprise Linux 9 and RHEL 10, lets a local attacker with an unprivileged shell account redirect privileged file-ownership or permission changes to arbitrary files. Exploitation requires the attacker to win a narrow, non-deterministic timing window while an administrator concurrently performs a chown or chmod operation through the cockpit-files UI, so the practical result is unauthorized modification of file ownership/permissions affecting system integrity and availability rather than confidentiality. There is no public exploit identified at time of analysis and no confirmed CISA KEV active exploitation; this is a moderate-severity local integrity issue, not an urgent internet-facing threat.
A local time-of-check/time-of-use (TOCTOU) race condition in cockpit-files on Red Hat Enterprise Linux 9 and 10 allows an unprivileged local attacker to redirect a privileged chown operation to an arbitrary file by replacing a newly created directory with a symlink, resulting in potential information disclosure or unauthorized modification of sensitive files. Exploitation requires a privileged operator to trigger directory creation with owner assignment via cockpit-files inside an attacker-controlled writable parent directory, and the attacker must win a narrow timing window (CVSS 3.1: AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N, 6.0). No public exploit code or confirmed active exploitation was identified at time of analysis; this is a modest-priority local privilege/integrity issue rather than a mass-exploitation threat.
Local information disclosure in cockpit-machines on Red Hat Enterprise Linux 9 and 10 allows an authenticated local user to read plaintext VM credentials - including passwords - that the component passes directly on process command-line arguments during VM creation or installation. Exploitation is timing-dependent: the secret is only readable while a provisioning operation is in flight, and it also requires that /proc process arguments remain visible to other users (i.e., the host is not hardened with a hidepid-style mount option), so risk concentrates on multi-user or shared virtualization hosts. It yields no code execution and no privilege escalation, but a disclosed password compromises access to the affected VM; no public exploit code has been identified at time of analysis and the flaw is not confirmed actively exploited (not in CISA KEV).
Local information disclosure in cockpit-machines on Red Hat Enterprise Linux 9 and 10 allows an authenticated local attacker who can enumerate other users' process arguments to read guest VM installation credentials such as rootPassword and userPassword. The credentials are passed by install_machine.py as a JSON command-line argument during VM creation, so exposure is limited to the window while an administrator's installation workflow is running and depends on the host's process-visibility policy (e.g. /proc without hidepid=2). Publicly available exploit code exists, but there is no confirmed active exploitation; the issue requires local access plus a concurrently active install and cannot be triggered remotely or unauthenticated.
Local information disclosure in the cockpit-machines package on Red Hat Enterprise Linux 9 and Red Hat Enterprise Linux 10 lets an unprivileged local user capture a Red Hat Subscription Management (RHSM) offline token that is passed as a command-line argument to a helper script during token validation. Rated 5.0 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N), the impact is confidentiality-only: a local account that can read other processes' metadata (for example /proc/<pid>/cmdline via ps) must catch the brief window in which a privileged operator runs the validation, and the stolen token can then be exchanged for RHSM access tokens. There is no public exploit code identified at time of analysis and no CISA KEV entry; Red Hat tracks the issue as CVE-2026-92745 (EUVD-2026-83260).
An integer-wraparound in Cockpit's do_lastlog() login-accounting routine on ILP32 (32-bit) builds allows a low-privileged but authenticated local user holding an administrator-provisioned abnormally large UID to read and modify other users' lastlog records, producing low confidentiality and low integrity impact (CVSS 3.1 base 3.6, AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N). Exploitation requires a 32-bit build, a deliberately created large-UID account, and local access to the host; 64-bit LP64 builds do not overflow and are unaffected, and no public exploit code has been identified at time of analysis.
Denial of service in Red Hat's cockpit-ws web service lets a remote, unauthenticated attacker crash the process by sending a request to the exact configured WebService.UrlRoot prefix without a trailing slash, taking the Cockpit management interface offline. The flaw is only reachable on installations that have explicitly set the non-default WebService.UrlRoot option; default deployments are unaffected, and impact is availability-only with no data exposure or code execution. There is no public exploit identified at time of analysis, no confirmed active exploitation (not in CISA KEV), and exploitation carries a high-attack-complexity rating (AC:H) because the attacker must know and target the exact URL-root path.
Improper filtering of D-Bus broadcast signals in xdg-dbus-proxy allows a sandboxed Flatpak application to receive signal traffic that the configured path, interface, and member restrictions are meant to block, potentially exposing sensitive information carried on the D-Bus session bus and the AT-SPI accessibility bus. The weakness is strictly local and sandbox-scoped: it requires the attacker to already control a Flatpak application running inside the proxy sandbox, involves user interaction, and produces confidentiality-only impact, which is why the assessed CVSS base score is only 3.2 (AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N) with no integrity or availability consequences and no code execution. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Rendering a crafted PDF through Poppler's Splash backend can pin a CPU core at 100% for an extended attacker-controlled duration. The flaw in SplashOutputDev::tilingPatternFill computes an excessive loop count from tiling-pattern geometry near the int32 limit, without allocating memory. This availability-only issue affects Red Hat Enterprise Linux 6, 7, 8, 9, and 10, and Red Hat Hardened Images, and exploitation requires a victim to open a malicious PDF (UI:R, AV:L, PR:N - no privileges required). No public exploit identified at time of analysis, and no confirmed active exploitation.
A NULL pointer dereference in libxml2's XML catalog parser allows a crash-induced denial of service when a catalog file contains a `nextCatalog` element missing its mandatory `catalog` attribute. Affected deployments are those in which an application linked against libxml2 parses an attacker-influenced catalog - Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4 carry vulnerable libxml2 packages per the supplied CPE data. The attack vector is local (AV:L) and requires user interaction (UI:R) to induce parsing of the crafted file, with no authentication required (PR:N); impact is limited to availability (C:N/I:N/A:H) and there is no public exploit identified at time of analysis. Exploitation is constrained by the need for the target to actually perform catalog parsing on untrusted input and by resilient/restartable services absorbing the crash.
CPU exhaustion denial of service in jwcrypto's JWK.import_key() allows a remote unauthenticated attacker to supply a crafted JWK with an arbitrarily large key_ops array and trigger O(n²) duplicate-detection work, consuming CPU proportional to the square of the array length. Any Python application that passes externally-supplied JWK material to this API - via ECDH-ES key agreement, OIDC dynamic client registration, DPoP proof parsing, or ACME account key registration - is vulnerable. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; CVSS rates this at 5.9 (Medium) with AC:H reflecting the requirement that attacker-controlled key material must reach the vulnerable code path.
A path-handling flaw in the containers/storage Go library lets a crafted tar archive containing a malicious whiteout entry (for example 'victim/.wh.') cause UnpackLayer, ApplyLayer, or ApplyUncompressedLayer to replace the extraction destination directory with an arbitrary file. Systems that unpack container image layers with this library — notably Red Hat Enterprise Linux 10, Red Hat Ansible Automation Platform 2, OpenShift Container Platform 4, Quay 3, OpenShift Virtualization, Dev Spaces, and Red Hat Hardened Images — are in scope. Exploitation requires the operator or process to unpack an attacker-supplied archive, and the integrity impact is confined to the local extraction target; no public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV, consistent with the modest CVSS 3.1 base score of 4.4.
Symlink-based path traversal in the buildah/copier Go package allows a crafted tar archive to create files outside the intended extraction directory when the library is used outside of Buildah by a non-root caller. Buildah's own extraction path applies chroot hardening and is explicitly not affected, so real exposure sits with downstream consumers of the package - including Red Hat Ansible Automation Platform 2 and Red Hat Enterprise Linux 10 in the published CPE data, plus other tagged Red Hat products - that unpack untrusted archives with it. Impact is integrity-only (no confidentiality or availability component in the assessed vector), the victim application must actually process the malicious archive (UI:R), EPSS is low at 0.25% (16th percentile), CISA's SSVC records exploitation as none and automatable as no, and no public exploit code has been identified at time of analysis.
GNOME Shell fails to validate the declared dimensions of icons returned by a remote search provider over D-Bus against the actual icon data buffer, producing an out-of-bounds read when an oversized size is supplied. A malicious or compromised search provider registered in a user's session can crash the shell — terminating the desktop session — and may leak fragments of adjacent shell memory. Rated CVSS 6.1 (AV:L/UI:R/C:L/A:H) by Red Hat; no public exploit code or CISA KEV entry was identified at time of analysis, so exploitation currently requires a locally present hostile search provider rather than remote access.
An out-of-bounds read in the SSSD NSS responder allows any local user who can reach the responder's UNIX socket to crash the process by sending a specially crafted service lookup request, degrading local name/service resolution on the host. Only SSSD deployments shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 nodes are listed as affected by the vendor CPE data, and the flaw requires local socket access rather than network reach. There is no public exploit code and no CISA KEV listing; SSVC records exploitation as 'none' and the issue carries a modest CVSS 3.1 base score of 4.0 (availability impact only).
Denial of service in multipathd allows a local attacker with access to the UNIX control socket to permanently block the daemon's listener thread by sending valid commands and then refusing to read the replies. This renders legitimate IPC operations - such as multipath path queries and storage management commands - unable to complete until the daemon is restarted. Red Hat, the reporting source, explicitly confirms the issue is bounded to availability impact only: no privilege escalation, no code execution, and no confidentiality or integrity loss. No public exploit code has been identified at time of analysis.
Heap buffer overflow in the libtiff `tiff2pdf` utility allows local attackers to cause severe memory corruption and application crashes by supplying a crafted BigTIFF file. The root cause is an integer truncation: a 64-bit `StripByteCounts` value is silently narrowed to 32 bits, producing an undersized heap allocation that a subsequent memory copy overflows. Red Hat has issued advisory RHSA-2026:53467 and an upstream fix is available via libtiff GitLab merge request #729; no public exploit or active exploitation has been identified at time of analysis.
Symlink-following in libvirt's qemuTPMEmulatorPrepareHost() allows a local attacker with access to the swtpm service account to redirect a path-based chown() call - executed by libvirtd running as root - to transfer ownership of any arbitrary file on the system to the swtpm user. This affects libvirt on Red Hat Enterprise Linux 6 through 10. With ownership of a sensitive file such as /etc/shadow or a cron directory transferred to swtpm, the attacker gains a privilege escalation primitive beyond the swtpm account boundary. No public exploit or active exploitation has been identified at time of analysis.
Integer overflow in GStreamer's gst-plugins-good isomp4 plugin exposes adjacent heap memory when parsing CEA-608 closed-caption data embedded in specially crafted MP4 or MOV files. The 32-bit unsigned arithmetic wraparound bypasses a bounds check, enabling an out-of-bounds heap read of up to 244 bytes that is forwarded into downstream caption output - leaking process memory to an attacker who controls caption rendering output. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit has been identified at time of analysis, and no active exploitation is confirmed.
Pacemaker Configuration System (PCS) on Red Hat Enterprise Linux 8, 9, and 10 exposes an arbitrary file-read primitive to local members of the 'haclient' group via the `pcs host auth --token` command. The pcsd daemon reads the attacker-specified file path with root privileges, base64-encodes up to 256 bytes of content, and transmits it through cluster node communication channels the attacker controls - enabling exfiltration of short sensitive files such as API tokens, symmetric keys, or credential snippets that are otherwise inaccessible to the attacker. No public exploit has been identified at time of analysis, but the attack requires only local access and group membership, making it a realistic insider-privilege escalation threat in multi-tenant HA environments.
Case-insensitive username comparisons in two code paths of the CUPS scheduler - printer ACL validation and private-attribute filtering - allow an authenticated adjacent-network attacker to bypass username-based access controls in configurations that rely on those ACLs. The bypass exposes private print attributes to users who should be excluded by ACL policy. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified at time of analysis, consistent with the low CVSS base score of 3.0.
Heap out-of-bounds read in CUPS's cupsUTF32ToUTF8() transcoding function exposes partial daemon heap memory to adjacent-network attackers without authentication. The vulnerable code path is reachable via SNMP supply-description parsing, meaning any attacker who can spoof or inject crafted SNMP responses on the same network segment as a CUPS host can trigger the read and potentially leak heap contents from the printing daemon. No active exploitation has been identified, and the adjacent-network attack vector significantly limits the exposure surface.
Symlink-following race condition in GLib2's g_file_replace() allows a local attacker with write access to the destination directory to redirect privileged file writes to arbitrary files. When the G_FILE_CREATE_REPLACE_DESTINATION flag is set and creation of the .goutputstream-XXXXXX temporary file fails, GLib2 unlinks the destination and then recreates it without O_EXCL (exclusive creation) or symlink-safe open semantics, opening a TOCTOU race window. An attacker who wins this race by placing a symlink at the destination path can cause any process using this code path - potentially running with elevated privileges - to overwrite files the attacker cannot directly modify. No public exploit has been identified at time of analysis.
Flatpak's `org.freedesktop.Flatpak.SystemHelper` D-Bus service contains a TOCTOU race condition in the `Deploy()` function where a privileged `chmod` executes before OSTree repository validation completes, allowing a local low-privileged attacker to redirect symlinks to arbitrary system files within that timing window. A successful exploit can yield high-confidentiality impact (reading privileged files) and limited integrity and availability impact (CVSS C:H/I:L/A:L), as the unguarded chmod can be inherited by attacker-controlled symlink targets. No public exploit code or CISA KEV listing has been identified at time of analysis, and the High attack complexity (AC:H) reflects the precision timing required to win the race.
Heap out-of-bounds read in libtpms during TPM 2.0 state restoration allows an adjacent unauthenticated attacker to crash the swtpm process and deny TPM services to dependent virtual machines. The flaw arises in the state-blob parser: an attacker-controlled oversized skip-block length drives the internal INT32 size counter negative; subsequent bounds checks cast that counter to UINT32, wrapping it to a large positive value and bypassing the check, which then drives the parser to read memory outside the heap buffer. Vendor and upstream commit confirm the impact is denial of service only - no data corruption or information disclosure was confirmed. No public exploit or CISA KEV listing has been identified.
HTTP/2 flow-control window mismanagement in libsoup (GNOME's HTTP client/server library) allows a malicious HTTP/2 server to abort a connecting client process or crash its HTTP/2 session. When the client sends a request body sourced from a non-pollable GInputStream, libsoup buffers the data before transmission; a server that then shrinks SETTINGS_INITIAL_WINDOW_SIZE causes the client to copy the full pre-buffered payload into a now-undersized DATA callback without a runtime bounds check, triggering a reachable assertion abort (CWE-617). No public exploit has been identified at time of analysis, and the high-complexity timing requirement constrains practical exploitation.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Key-ID (kid) bypass in the jwcrypto Python JOSE library allows an attacker who holds any valid key within a JWK set to forge a General JSON Serialization JWS that satisfies verification for a different kid, effectively impersonating another tenant, user, or service. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 7-10, Red Hat OpenShift AI (RHOAI), and Red Hat OpenStack Platform 16.2, wherever jwcrypto performs JWS signature verification with kid-based authorization. No public exploit or CISA KEV listing has been identified at time of analysis, and the EPSS score is not provided, but the integrity impact is high for multi-tenant architectures.
Crash of the gvfsd-mtp daemon in gvfs is achievable by anyone who can connect a malicious USB MTP device to a target Linux system. The do_read() function in gvfsbackendmtp.c accepts the byte-count reported by the device at face value and passes it uncapped to memcpy(), causing an out-of-bounds read that triggers a segmentation fault when the device deliberately over-reports its response length. The vulnerability affects gvfs as packaged across Red Hat Enterprise Linux 6 through 10; no public exploit has been identified and exploitation is constrained by physical proximity.
Heap buffer overflow in the gvfs AFP (Apple Filing Protocol) backend allows a malicious AFP server to crash the gvfsd-afp process on connecting clients, resulting in denial of service. When a client mounts an AFP share, the DSI (Data Stream Interface) read path accepts a server-supplied length value without validating it against the pre-allocated reply buffer, enabling the server to write past buffer boundaries. This affects RHEL 6 through 10 and requires user interaction to mount a malicious share; no public exploit or CISA KEV listing has been identified at time of analysis.
Uninitialized heap memory disclosure in gvfs's SFTP backend enables a malicious SFTP server to deterministically defeat ASLR on client systems running RHEL 6 through 10. When a user mounts a crafted SFTP share, the read_string() parser allocates a buffer for the FXP_HANDLE response but does not verify that the buffer is fully populated; the client subsequently echoes the uninitialized remainder - containing heap base pointers and the libgio load address - back to the attacker on every subsequent file-handle request. No public exploit has been identified at time of analysis, and the issue does not appear in CISA KEV, but the ASLR bypass it achieves is a high-value precursor for chained memory-corruption attacks against gvfsd-sftp.
Unauthenticated enumeration of internal PKI topology is possible in Red Hat Certificate System 9 through an unprotected REST endpoint. Any network-accessible client can issue GET /ca/rest/securityDomain/hosts and receive a structured inventory of all participating CA subsystem hosts, their roles, and security domain membership - without presenting credentials, a client certificate, or a session token. While the direct CVSS impact is rated medium (5.3), the real-world significance lies in enabling precise reconnaissance of internal PKI infrastructure that could facilitate targeted follow-on attacks against specific subsystems. No active exploitation is confirmed and no public exploit code has been identified at time of analysis.
Unauthenticated network attackers can elicit Java stack traces from Red Hat IdM's Dogtag CA REST enrollment endpoint (POST /ca/rest/certrequests) by submitting malformed requests, causing HTTP 500 responses that expose internal implementation details under CWE-209. The same error path simultaneously amplifies the CA debug log with large multi-line stack traces, creating a log-fill resource exhaustion vector that drives disk growth and I/O contention on affected RHEL 6 through 10 deployments. No public exploit has been identified at time of analysis, but the attack requires no authentication and low complexity, making it accessible to unskilled opportunistic attackers targeting IdM infrastructure.
Heap metadata corruption in the popt command-line parsing library's `poptConfigFileToString` function can be triggered by a local, low-privileged attacker who supplies specially crafted configuration file content to an affected host. Successful exploitation causes the consuming process to crash, resulting in denial of service. CVSS 2.5 (Low) reflects the strictly local, high-complexity exploitation path with no confidentiality or integrity impact; no public exploit code or active exploitation (CISA KEV) is known at time of analysis.
Out-of-bounds memory write in libsolv crashes RPM-based package manager tools (dnf, yum, zypper) when processing a corrupted or specially crafted .solv repository cache file. The root cause is an absent array-index bounds check on directory-id values read from compressed filelist data during .solv file rewriting - but because the out-of-bounds write stores only a fixed, non-attacker-controlled value, the vendor explicitly rules out arbitrary code execution, confining impact to denial of service. No public exploit has been identified and no active exploitation is confirmed; note that the 'RCE' metadata tag conflicts directly with the description and appears to be erroneous.
Denial of service in jwcrypto's JWE.deserialize() function allows a remote unauthenticated attacker to crash any service that processes untrusted JWE tokens by submitting a malformed compact serialization containing an excessive number of period delimiters, triggering uncontrolled memory allocation and a MemoryError. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 9 and 10, OpenShift AI (RHOAI), and OpenStack Platform 16.2 as disclosed via Red Hat Bugzilla 2524147 and upstream advisory GHSA-96rv-c4vc-h4f4. No public exploit code or CISA KEV listing exists at time of analysis, and impact is confined to availability with no confidentiality or integrity exposure.
Out-of-bounds write in gdk-pixbuf's JPEG decoder affects any application on Red Hat Enterprise Linux 6 through 10 that renders JPEG images containing chunked ICC profile markers. When ICC profile parsing encounters an error, stale size metadata persists after the profile buffer is freed; a subsequent allocation within the same decode operation then writes beyond buffer boundaries, crashing the application. No active exploitation has been identified (no CISA KEV listing), and no public exploit code is known at time of analysis, but the availability-only impact and user-interaction requirement make this a realistic denial-of-service risk in desktop and server image-processing contexts.
CPU exhaustion in libsoup's HTTP Range header processing affects any SoupServer deployment carrying the CVE-2025-32907 fix but not MR !550. Supplying a Range header with approximately 25,000 repeated satisfiable byte ranges triggers an O(N²) coalescing loop - each g_array_remove_index() call induces an O(N) memmove on GArray - blocking the server's event loop for roughly 90 ms per request from a single unauthenticated client. The description explicitly rules out memory corruption and information disclosure; this is a pure availability issue with no public exploit identified at time of analysis.
Resource exhaustion via crafted SASL UNBIND in 389 Directory Server (389-ds-base) allows a remote authenticated attacker to stall connections and deny LDAP service to legitimate users. Affected deployments span Red Hat Directory Server 11, 12, and 13, plus 389-ds-base as packaged across RHEL 6 through 10. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 6.5 rating (AV:N/AC:L/PR:L) indicates low-complexity network exploitation requiring only a low-privilege LDAP bind - a realistic bar in any environment with shared directory users.
Improper certificate validation in JSS (Java Security Services) allows the JSSTrustManager class to accept CA certificates from the NSS database that lack TRUSTED_CA trust flags, meaning certificates never explicitly designated as trust anchors can still be used to anchor TLS chains. In non-default deployments where certificate revocation checking has been disabled, this creates a viable path for a man-in-the-middle attacker to forge certificates accepted by PKI client connections, with high confidentiality and low integrity impact. No public exploit has been identified at time of analysis, and the AC:H CVSS rating reflects the meaningful attack complexity - MITM positioning plus a specific non-default configuration must both be present.
Denial of service in FreeIPA's ipa-enrollment SLAPI plugin allows any authenticated LDAP client to crash the 389 Directory Server by sending a malformed extended operation. The flaw (CWE-476, null pointer dereference) is triggered by omitting the request value for the JOIN_OID in the ipa-enrollment extended operation, causing the server to dereference a null pointer and crash. No public exploit or active exploitation has been identified at time of analysis; however, the low attack complexity and network-accessible vector make this a credible threat against any RHEL Identity Management deployment.
Resource exhaustion in FreeIPA's OTP key processing path allows any low-privilege authenticated domain user to degrade the IPA authentication service. By submitting an oversized One-Time Password key, the user triggers an unbounded decode/re-encode cycle (CWE-770) that consumes excessive CPU and memory, degrading availability for all dependent systems and users. No public exploit code exists at time of analysis, and this CVE is not listed in CISA KEV; however, the AV:N/PR:L CVSS vector means any valid domain account on a network-accessible FreeIPA instance is sufficient to trigger the condition.
Integer truncation in libsoup's SoupServer Range-header comparator silently drops byte ranges from HTTP 206 Partial Content responses when the target resource exceeds approximately 2 GB. The sort_ranges() function in soup-message-headers.c narrows a 64-bit offset subtraction to a 32-bit int return value, inverting the comparator sign whenever offsets differ by more than INT_MAX, causing incorrect range sorting and silent omission of content. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation requires network access to a SoupServer instance serving files larger than ~2 GB.
Heap overread in swtpm's SWTPM_NVRAM_CheckHeader() function allows local low-privileged users to crash the swtpm daemon and leak heap memory contents to system logs on Red Hat Enterprise Linux 8, 9, and 10. The root cause is a classic sizeof-pointer vs. sizeof-struct confusion: the guard compares buffer length against sizeof(bh) (pointer width, 8 bytes on 64-bit) rather than sizeof(*bh) (actual struct size), permitting undersized buffers to bypass validation and triggering a 2-byte heap overread on 64-bit systems or 6 bytes on 32-bit. No public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds memory read in BlueZ's AVRCP implementation allows a physically proximate attacker - within Bluetooth radio range - to crash the bluetoothd daemon and potentially leak heap memory contents by sending a malformed GetFolderItems response. The flaw resides in parse_media_element() and parse_media_folder(), which fail to validate packet length fields before reading. Exploitation requires the victim to interactively pair with the attacker-controlled malicious Bluetooth device. No public exploit code or CISA KEV listing has been identified at time of analysis.
Undertow's HTTP response header writing path silently truncates 16-bit Unicode characters to 8-bit bytes via a narrowing cast in the `writeString()` method, enabling remote unauthenticated attackers to inject ASCII control characters or special symbols into response headers when an application passes unsanitized user-controlled input into those headers. Affected Red Hat distributions include RHEL 8/9/10, JBoss EAP 7, Red Hat Build of Apache Camel for Spring Boot 4, and Red Hat Single Sign-On 7, as reported by Red Hat via Bugzilla #2516038. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Privileged file corruption and denial of service in sblim-sfcb (Small Footprint CIM Broker) on Red Hat Enterprise Linux 6 through 10 is achievable by a local low-privileged attacker exploiting a symlink-based race condition during privileged instance migration. The SFCB daemon writes to a temporary file in /tmp without atomic safety guarantees, allowing an attacker who repeatedly races a symbolic link into place to redirect that privileged write to an arbitrary file path. No public exploit has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Out-of-bounds memory read in sblim-sfcb's provider-manager IPC message parser allows a local low-privileged attacker to crash the provider-manager process, causing denial of service and potentially leaking limited adjacent memory contents. The vulnerability stems from unsafe deserialization of attacker-controlled IPC messages without adequate boundary validation, affecting sblim-sfcb as shipped across Red Hat Enterprise Linux versions 6 through 10. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained to local system access.
Insecure temporary file creation in sblim-cmpi-base provider registration scripts exposes Red Hat Enterprise Linux 6 through 10 to a local symlink attack, enabling a low-privileged user to redirect privileged file writes to arbitrary paths. When registration scripts execute under elevated (root) privileges, an attacker who pre-positions a symlink in a world-writable directory can cause those scripts to overwrite root-owned files, disrupting system services or integrity. No public exploit code has been identified at time of analysis, and exploitation requires both local access and favorable timing, but the integrity and availability impact on a compromised host are rated high by the vendor.
The iscsiuio DHCP parser in open-iscsi crashes when processing maliciously crafted DHCP reply packets, disrupting iSCSI storage connectivity or network boot on affected hosts. An integer underflow (CWE-191) in the IPv4/UDP DHCP reply parsing path triggers an out-of-bounds read, causing the iscsiuio process to terminate; impact is limited to availability with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and the adjacent-network attack vector constrains the realistic attacker population to the same Layer-2 segment as the target.
Integer underflow in open-iscsi's iscsiuio daemon crashes the process when parsing malformed DHCPv6 Advertise packets with a truncated UDP length field, disrupting iSCSI storage connectivity. Systems running Red Hat Enterprise Linux 9 and 10 with iscsiuio actively engaged in a DHCPv6 exchange are exploitable by any unauthenticated attacker on the same adjacent network segment. No active exploitation (CISA KEV) or public proof-of-concept has been identified at time of analysis; real-world impact is highest in shared or multi-tenant storage network environments where adjacency cannot be guaranteed.
Denial of service in open-iscsi's iscsiuio daemon allows an unauthenticated attacker on the same local network segment to render the daemon permanently unresponsive by sending a single crafted ICMPv6 Router Advertisement carrying a zero-length option, triggering an infinite loop and sustained CPU exhaustion. Affected deployments include Red Hat Enterprise Linux 9 and 10 systems where iscsiuio is active for iSCSI hardware offload. A secondary out-of-bounds read risk exists when a short IPv6 payload is processed, though no memory corruption or data exposure has been confirmed from available intelligence; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer underflow in GStreamer's avidemux element allows a remote unauthenticated attacker to trigger heap out-of-bounds read and write, heap memory disclosure, and application crash by delivering a crafted AVI file containing a malformed FUJIFILM strd chunk. The gst_avi_demux_parse_strd() function decrements its remaining-length counter by fixed offsets without bounds checking, causing unsigned integer wraparound for payloads of exactly 106 or 107 bytes. Because avidemux is auto-plugged by GStreamer's high-level components (playbin, decodebin, gst-discoverer), any application that opens or previews a media file - including GNOME Files, Nautilus, Totem, and many others - can trigger the vulnerability without user awareness. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available in gst-plugins-good 1.28.6.
Out-of-bounds read in GStreamer's avidemux plugin (gst-plugins-good) allows a remote, unauthenticated attacker to crash media-processing applications and potentially leak memory contents by supplying a crafted AVI file. The flaw resides in gst_avi_demux_riff_parse_vprp(), where the count of video field descriptors is derived by dividing remaining buffer size by an attacker-controlled vprp->fields value rather than the struct size, causing the parser to treat more descriptors as valid than the buffer holds. User interaction is required to trigger the bug (the victim must open or stream the malicious AVI via playbin or decodebin), and the primary confirmed impact is denial of service; limited information disclosure is also possible. No public exploit or CISA KEV listing has been identified at time of analysis.
Use-After-Free vulnerabilities in the GNU linker (ld) component of binutils crash the linker process when processing crafted object or archive files during LTO-enabled linking on Red Hat Enterprise Linux systems. The flaws exist at three distinct dereference points in add_archive_element() in ld/ldmain.c, where plugin_maybe_claim() frees the BFD object but the caller retains dangling pointers that are subsequently accessed. The attack surface is confined to build-time environments, with the primary realistic threat being a supply chain attack introducing a malicious object file into CI/CD pipelines or developer build systems; no public exploit code or active exploitation has been confirmed at time of analysis.
Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash the directory service with a single crafted BIND request. The flaw resides in `get_ldapmessage_controls_ext()`, which frees a parsed controls array when rejecting an unknown critical Session Tracking control but fails to clear the corresponding SLAPI_REQCONTROLS pblock slot - causing operation teardown to free the same pointer a second time. Affected deployments include Red Hat Directory Server 11 through 13 and the 389-ds-base package across all supported RHEL versions (6-10). No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; the CVSS AC:H rating reflects that reliable heap exploitation requires specific memory layout conditions rather than a trivially repeatable one-shot crash.
HTTP request smuggling in Undertow's ChunkReader component enables unauthenticated remote attackers to inject out-of-sync requests, bypassing upstream security controls such as authentication layers or reverse-proxy ACLs. Affected deployments include JBoss EAP 7, WildFly, Red Hat Enterprise Linux 8/9/10, Red Hat Data Grid 8, Red Hat Fuse 7, Red Hat Single Sign-On 7, and several Apache Camel-based Red Hat products. No confirmed active exploitation or public proof-of-concept has been identified at time of analysis; the CVSS 5.3 Medium score reflects limited direct impact, though real-world risk in proxy-fronted architectures is meaningfully higher than the score alone suggests.
Cleartext credential exposure in Red Hat insights-core allows SSSD LDAP bind passwords (ldap_default_authtok) and Pacemaker fence device credentials to be included unredacted in diagnostic archives uploaded to console.redhat.com. The redaction layer uses a naive string-match on the literal key name 'password', leaving non-standard credential field names - such as those used by SSSD and Pacemaker - completely unprotected before archive upload. With CVSS PR:L, a threat actor with authenticated access to an organization's Red Hat Insights console can retrieve these cleartext credentials from stored archives. No public exploit identified at time of analysis and not confirmed in CISA KEV.
Sensitive guest disk contents are exposed to any local user on Red Hat Enterprise Linux KVM hosts due to `qemu-img` creating new volume image files with world-readable permissions during libvirt storage clone or convert operations. Affected platforms span RHEL 6 through 10 and RHEL for Nvidia 26. No public exploit code has been identified and this vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at time of analysis, but the CVSS C:H rating reflects full guest disk exposure to a low-privileged local attacker.
Missing authorization on CleanAllRUV and Abort CleanAllRUV LDAP extended operations in 389 Directory Server (Red Hat Directory Server 11-13) allows unauthenticated remote attackers - when the default anonymous access setting is active - to manipulate replication metadata, purge changelog records, and abort administrator-initiated cleanup tasks. The affected operations are replication-maintenance primitives that bypass the authorization layer entirely (CWE-862), meaning no account or session is required under default configuration. No public exploit code or active exploitation in CISA KEV has been identified at time of analysis, but the network-accessible, zero-authentication attack surface in a widely deployed enterprise directory server makes this a notable availability and integrity risk.
Integer overflow in p11-kit's RPC message parser on 32-bit systems allows a local attacker, or any principal with access to a reachable RPC channel, to crash the p11-kit process via a heap out-of-bounds write, resulting in Denial of Service. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.
SELinux label manipulation via TOCTOU race condition in the policycoreutils fixfiles script allows a local low-privileged attacker to corrupt SELinux mandatory access control labels on arbitrary system files, including security-critical targets such as /etc/shadow. The flaw affects fixfiles when run in relabel or restore mode across all supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained by both a required race condition win and the need for an administrator to actively invoke fixfiles.
Persistent denial of service in libkcapi's AIO interface allows a local attacker to permanently hang an affected application thread by exploiting improper error-state handling in _kcapi_aio_read_all(). Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4 - all environments where applications leverage libkcapi's asynchronous cryptographic operations. No public exploit code or active exploitation has been identified at time of analysis; the high attack complexity (AC:H) and local-only attack vector substantially limit real-world risk beyond targeted or insider-threat scenarios.
IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.
Stack-based out-of-bounds read in stunnel's s_vlog logging function allows remote unauthenticated attackers to crash the service by sending protocol inputs that generate log messages exceeding 1024 bytes via vsnprintf. The primary impact is service disruption (availability), with a limited integrity impact in corner cases where trailing newline characters in the stack buffer can be overwritten with null bytes. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
SSRF bypass in stunnel 5.79 and earlier allows authenticated SOCKS proxy clients to circumvent intended localhost access restrictions by supplying IPv4-mapped IPv6 addresses (e.g., ::ffff:127.0.0.1) or unspecified addresses (0.0.0.0, ::) in proxy requests. Exploitation reaches loopback-bound services on the stunnel host - services deliberately isolated from external network access - potentially exposing internal APIs, administrative interfaces, or other localhost-only endpoints. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
SSSD configured with the Microsoft Entra ID identity provider fails to neutralize single quotes in lookup names before embedding them into Microsoft Graph OData queries, enabling an authenticated local attacker to inject filter syntax. This can broaden user or group searches, leading to information disclosure of unintended directory objects and a denial of service through excessive processing and cache population. The CVSS vector (AV:L/PR:L) confirms the attack is local and requires low privileges, and exploitation is only possible when the non-default Entra ID backend is enabled; no public exploit or active exploitation is reported, and no EPSS score was provided.
Denial of service in SSSD allows a local, already-authenticated user who can reach the PAM responder and complete a GSSAPI authentication request to send a follow-up request over the same connection, dereferencing freed cached connection state and terminating the service, which disrupts system authentication. Per the authoritative assessment the issue is rated CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H): it is local-only, requires valid low-level credentials on the host, and is constrained by high attack complexity because the dangling-pointer dereference depends on request timing and sequencing over a reused connection. Impact is availability-only - no confidentiality or integrity effect - and no public exploit identified at time of analysis (no CISA KEV listing and no publicly available exploit code in the provided intelligence).
Denial of service in SSSD (the System Security Services Daemon) allows remote unauthenticated attackers to crash the daemon by presenting a certificate that is missing the expected Security Identifier (SID) extension during authentication or lookup operations. Only deployments explicitly configured with SID-based certificate mapping rules reach the vulnerable code path, since the certificate-to-user lookup logic dereferences the SID extension without first confirming it exists; standard installations that do not use SID-based certificate mapping are not affected. The flaw is rated CVSS 5.9 (AV:N/AC:H/PR:N/UI:N/C:N/I:N/A:H, availability-only) and, per available intelligence, no public exploit code exists and exploitation has not been confirmed as active - no public exploit identified at time of analysis.
Denial of service in SSSD's autofs responder allows a local attacker with an existing account on the host to crash the responder process by writing a specially crafted request containing an invalid packet length to its UNIX domain socket. The malformed length triggers an integer underflow that produces an out-of-bounds read (CWE-125), terminating the responder and disrupting automount map lookups; there is no confidentiality or integrity impact and no remote vector. Exploitation requires the autofs responder to be enabled in sssd.conf and local reachability of its socket (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, 5.5); no public exploit code and no confirmed active exploitation were identified at time of analysis. Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 (via packaged SSSD) are listed as affected.
Access control bypass in SSSD when configured with non-default ordering that evaluates password-expiration warnings before restrictive access rules allows remote authenticated users with expired passwords to gain unauthorized access to protected systems via alternative authentication methods such as SSH public key authentication. This flaw (CWE-393) affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 deployments using LDAP access control. Exploitation requires a specific non-default configuration, an expired password, and a non-password authentication path, making it a moderate conditional risk; no public exploit identified at time of analysis.
SSSD's NFS idmap plugin contains an out-of-bounds write (CWE-787): when a cached user or group name is larger than the destination buffer it is copied into, the size check fires but the copy proceeds anyway. An authenticated, low-privileged local attacker can request identity lookups that resolve to such oversized cached entries, crashing the identity-mapping service (denial of service) and potentially corrupting adjacent process memory; the attack is local-only and depends on the oversized-cache precondition, giving it high attack complexity (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H, 5.8). No public exploit code has been identified at time of analysis and the issue is not listed in CISA KEV.
Local denial of service in the SSSD Kerberos Credential Manager (KCM) responder allows an authenticated local user to exhaust host memory and make the service unresponsive by holding a persistent connection open while repeatedly storing and destroying Kerberos credentials. The flaw is a resource-lifecycle defect (CWE-772): cached objects are not released when credentials are removed, so memory grows monotonically until the responder stalls. Exploitation requires a valid local account and sustained store-then-destroy activity, yields availability impact only (CVSS 5.5, AV:L/PR:L/UI:N/A:H), and does not provide code execution or privilege escalation; no public exploit code or confirmed active exploitation was identified at time of analysis, and systems that do not use the KCM responder are not affected.
The SSSD Kerberos Credential Manager (KCM) responder can be crashed by an authenticated local user who holds a renewable Kerberos ticket-granting ticket, because a deferred callback in the TGT renewal path dereferences memory that has already been freed. Exploitation is conditional on the host being explicitly configured for KCM-based credential renewal (a non-default, feature-dependent prerequisite), and the assessed vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H (4.7) reflects local access, high attack complexity, and an availability-only impact confined to the sssd-kcm service. There is no public exploit identified at time of analysis and no confirmed active exploitation (CISA KEV); overall this is a medium/low-priority denial-of-service issue rather than a high-CVSS/low-real-risk outlier.
Authentication bypass in SSSD permits a user with valid credentials for an already-expired account to authenticate to the system when SSSD is configured to enforce account expiration using LDAP shadow attributes and the expiration value is stored as zero. This moderate-severity logic flaw (CVSS 5.4, CWE-193) affects Red Hat Enterprise Linux 6, 7, 8, 9, and 10, as well as Red Hat OpenShift Container Platform 4; exploitation requires the non-default shadowExpire=0 configuration and valid credentials for the expired account. No public exploit code or active exploitation has been identified at time of analysis.
Denial of service in SSSD's autofs responder allows an authenticated local unprivileged user to repeatedly request master automount map updates, triggering global cache invalidation and forcing repeated backend directory lookups, which degrades automount availability and elevates resource consumption. Affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 when SSSD-backed automount maps are served from a backend directory provider such as LDAP or Active Directory. This is a moderate-priority local availability issue (CVSS 5.5) with no public exploit code identified at time of analysis.
Memory exhaustion in the SSSD autofs responder can let a local, authenticated unprivileged user deny service on affected hosts by holding an open client connection while repeatedly submitting valid requests, since per-request memory is only reclaimed when the connection closes. The flaw affects SSSD deployments on Red Hat Enterprise Linux 6 through 10 and Red Hat OpenShift Container Platform 4, but the vulnerable code path is only reachable when the autofs responder is explicitly enabled in sssd.conf - a non-default configuration. Exploitation is limited to local access (AV:L/PR:L) with no impact on confidentiality or integrity, so it is correctly rated medium (CVSS 5.5); no CISA KEV entry and no public exploit code have been identified at time of analysis, and a realistic impact generally requires a shared, multi-user host where one user's resource consumption degrades service for others.
Crashing the SSSD autofs responder process via a crafted request to its UNIX socket allows a local, low-privileged attacker to cause a denial of service on affected Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 systems. The vulnerability stems from improper buffer offset calculation during request parsing, leading to an out-of-bounds read (CWE-125) that terminates the responder process; it carries a CVSS 3.3 (Low) score with no confidentiality or integrity impact. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and the autofs responder service must be enabled for the flaw to be exploitable.
A local, low-privileged user can crash the sssd authentication daemon by submitting a crafted passkey (FIDO2/WebAuthn) authentication token that omits expected null terminators, causing an out-of-bounds read and terminating the service, which disrupts authentication for all users relying on that host. Rated CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), the flaw is purely an availability issue confined to systems where sssd's passkey authentication path is configured and reachable; there is no confidentiality or integrity impact and no remote or unauthenticated route. At the time of analysis, no public exploit code has been identified and there is no confirmed active exploitation (not listed in CISA KEV), and no vendor-released patch has been identified.
Argument injection in the OpenPrinting CUPS mailto notifier can let a low-privileged user or authorized subscription creator influence the configured sendmail command when CUPS email notifications are enabled. Exploitation requires a crafted notify-recipient-uri beginning with '-' and an MTA that interprets it as an option; the assessed risk is low because email notification is non-default, CUPS is typically local-only (AV:L), complexity is high, and impact is limited to low confidentiality and integrity in the assessed vector. No public exploit identified at time of analysis. Affected deployments include upstream OpenPrinting CUPS and CUPS in Red Hat Enterprise Linux 8, 9, 10, and Red Hat Hardened Images.
Denial of service in FreeType's CID-keyed font loader allows attackers to exhaust memory and CPU by supplying a crafted font that triggers repeated allocation and decryption of subroutine data across multiple font dictionaries, causing the consuming application or service to hang or terminate. The issue is rated CVSS 5.5 with availability-only impact (A:H, C:N/I:N) and is gated by user interaction - someone or some automated process must actually load and parse the malicious font, which can be delivered by embedding it in a document, web page, or other parsed content. No public exploit code and no confirmed active exploitation were identified at time of analysis, but the Red Hat advisory points to an upstream FreeType fix commit (f3ca71c9900fe860849b3163a6e2c1e765b291d9) and tracks the flaw under Bugzilla 2462295, so a patched release should be expected; the practical risk is highest for unattended font- or document-processing pipelines rather than interactive desktop use.
GEGL's Radiance HDR loader reads past the end of a memory-mapped image when a crafted .hdr file declares a scanline width larger than the actual data present in an uncompressed scanline, crashing the application that consumes the library - most notably GIMP, which uses GEGL for image processing. Any local user who opens such a file is affected; no authentication is required to the library, but the attacker must convince a victim to open the crafted file (UI:R), and the impact is availability-only (CVSS 5.5, AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). No public exploit code has been identified at time of analysis and the issue is not listed in CISA KEV, consistent with a low-priority, local denial-of-service rather than a code-execution primitive.
HTTP request smuggling in libsoup's SoupServer - as shipped in Red Hat Enterprise Linux 6, 7, 8, 9, and 10 - allows remote, unauthenticated attackers to have an attacker-controlled HTTP request processed as an unintended subsequent request on a keep-alive connection. The issue triggers when an HTTP/1.x client sends 'Expect: 100-continue' with a declared body and the SoupServer-based application issues an early final (non-1xx) response before that body is read; SoupServer then neither drains the body bytes nor closes the connection, so the leftover bytes are parsed as the next request. Rated CVSS 3.1 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N), the flaw carries limited integrity impact on request handling while leaving confidentiality and availability unaffected, and it is inert unless the specific combination of keep-alive, a declared body, and an early final response is present. No public exploit code and no confirmed active exploitation were identified at time of analysis.
Opening a crafted uncompressed DDS image in GIMP triggers a one-byte heap out-of-bounds read in the file-dds plug-in, which can crash the plug-in process. The flaw requires a local user to open the malicious file (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L), and the crash is non-deterministic because it only occurs when the byte past the pixel buffer lands on an inaccessible memory page; no information disclosure or code execution has been demonstrated. No public exploit code has been identified at time of analysis, and while downstream tracking covers Red Hat Enterprise Linux 6 through 10, the availability-only impact keeps real-world risk low and the 'RCE', 'Buffer Overflow' and 'Information Disclosure' tags attached to this record are not supported by the assessed vector.
Out-of-bounds heap read in GIMP's TIM image loader is triggered when a user opens a crafted 4bpp TIM image that is promoted to an RGBA layer, causing the file-tim plug-in to allocate an undersized row buffer and then process it with the larger RGBA row size. The result is disclosure of adjacent heap memory into the decoded image and a possible plug-in crash, with exploitation requiring local access and victim user interaction (CVSS 4.4, CWE-125). No public exploit is identified at time of analysis, and impact is bounded to partial confidentiality loss and availability loss rather than code execution.
Deleted or deprovisioned users can retain authorization on hosts running SSSD with the LDAP access provider when ldap_access_order includes ppolicy or lockout, because a user lookup that returns zero results trips a fail-open path that reports success and caches an allow decision. A remote attacker who already holds valid account context on the SSSD-managed host (authenticated, PR:L) can exploit this after offboarding to keep reading information and make limited modifications, giving low confidentiality and integrity impact (CVSS 3.1 5.4 Medium). The flaw only affects non-default access configurations that explicitly enable ppolicy/lockout ordering, and no public exploit identified at time of analysis.
A stack buffer overflow in libstoragemgmt's SCSI VPD page 0x80 serial-number parser lets an attacker who controls a local or virtual storage device crash or destabilize the host process that enumerates that device, yielding a denial of service with no confidentiality or integrity impact (CVSS 3.1: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, base 5.5). Exploitation requires low privileges on the host (PR:L, so an authenticated/local actor) plus the ability to attach or present a device, and it only triggers when the affected process actually queries the device's serial number - the vector is local, not remotely reachable over a network. No public exploit code was identified at time of analysis and there is no confirmed active exploitation (CISA KEV); the practical risk is concentrated in environments that enumerate untrusted or attacker-attachable storage, such as multi-tenant virtualization or hosts that accept hostile removable, iSCSI, or hypervisor-presented disks.
Isochronous OUT stream handling in usbredir can leave a stream's single transfer buffer permanently unsubmitted when a transfer count of 1 is used, which defeats the bounds check in usbredirhost_iso_packet() and lets a usbredir peer write beyond the end of the packet descriptor array on every subsequent isochronous packet. The flaw is an out-of-bounds write (CWE-787) affecting usbredir as shipped in Red Hat Enterprise Linux 6 through 10, and the published CVSS:3.1 vector (AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H, score 4.1) reflects a local, high-complexity, privileged trigger path whose dominant impact is availability loss rather than code execution. No public exploit identified at time of analysis, and the bug is not listed as confirmed actively exploited (CISA KEV); the realistic risk is materially lower than the raw memory-corruption classification suggests.
Stack-based buffer overflow in fetchmail when built with NTLM support allows a malicious or compromised mail server to trigger memory corruption by sending a crafted NTLM Type 2 challenge, potentially leading to remote code execution, authentication failure, or process termination. Exploitation requires fetchmail to be built with NTLM and configured to authenticate via NTLM against an attacker-controlled or man-in-the-middle'd server; no public exploit code or active exploitation has been identified. The flaw carries a CVSS score of 8.1 with high confidentiality, integrity, and availability impact, though reliable RCE is limited by stack-frame layout and modern memory hardening (stack canaries, ASLR, FORTIFY_SOURCE) on RHEL builds.
Local low-privileged users on Red Hat Enterprise Linux 9 and 10 systems running the cockpit-files module can abuse the privileged 'Paste as owner' feature by pre-staging a directory that contains a symbolic link, causing ownership changes to be applied to files outside the intended paste destination and thereby compromising data integrity (and, in some cases, confidentiality if the new ownership grants unauthorized read access). Exploitation is not remote - it requires local, authenticated access (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L) and only completes when a more privileged operator performs the paste and actively selects a non-original owner, which is the primary limiting factor; no public exploit code and no confirmed active exploitation were identified at time of analysis. The issue is a genuine but locally scoped privilege/integrity problem, not a high-urgency remote threat.
A symlink race condition (CWE-363) in cockpit-files, the file-management component shipped with the Cockpit web console on Red Hat Enterprise Linux 9 and RHEL 10, lets a local attacker with an unprivileged shell account redirect privileged file-ownership or permission changes to arbitrary files. Exploitation requires the attacker to win a narrow, non-deterministic timing window while an administrator concurrently performs a chown or chmod operation through the cockpit-files UI, so the practical result is unauthorized modification of file ownership/permissions affecting system integrity and availability rather than confidentiality. There is no public exploit identified at time of analysis and no confirmed CISA KEV active exploitation; this is a moderate-severity local integrity issue, not an urgent internet-facing threat.
A local time-of-check/time-of-use (TOCTOU) race condition in cockpit-files on Red Hat Enterprise Linux 9 and 10 allows an unprivileged local attacker to redirect a privileged chown operation to an arbitrary file by replacing a newly created directory with a symlink, resulting in potential information disclosure or unauthorized modification of sensitive files. Exploitation requires a privileged operator to trigger directory creation with owner assignment via cockpit-files inside an attacker-controlled writable parent directory, and the attacker must win a narrow timing window (CVSS 3.1: AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N, 6.0). No public exploit code or confirmed active exploitation was identified at time of analysis; this is a modest-priority local privilege/integrity issue rather than a mass-exploitation threat.
Local information disclosure in cockpit-machines on Red Hat Enterprise Linux 9 and 10 allows an authenticated local user to read plaintext VM credentials - including passwords - that the component passes directly on process command-line arguments during VM creation or installation. Exploitation is timing-dependent: the secret is only readable while a provisioning operation is in flight, and it also requires that /proc process arguments remain visible to other users (i.e., the host is not hardened with a hidepid-style mount option), so risk concentrates on multi-user or shared virtualization hosts. It yields no code execution and no privilege escalation, but a disclosed password compromises access to the affected VM; no public exploit code has been identified at time of analysis and the flaw is not confirmed actively exploited (not in CISA KEV).
Local information disclosure in cockpit-machines on Red Hat Enterprise Linux 9 and 10 allows an authenticated local attacker who can enumerate other users' process arguments to read guest VM installation credentials such as rootPassword and userPassword. The credentials are passed by install_machine.py as a JSON command-line argument during VM creation, so exposure is limited to the window while an administrator's installation workflow is running and depends on the host's process-visibility policy (e.g. /proc without hidepid=2). Publicly available exploit code exists, but there is no confirmed active exploitation; the issue requires local access plus a concurrently active install and cannot be triggered remotely or unauthenticated.
Local information disclosure in the cockpit-machines package on Red Hat Enterprise Linux 9 and Red Hat Enterprise Linux 10 lets an unprivileged local user capture a Red Hat Subscription Management (RHSM) offline token that is passed as a command-line argument to a helper script during token validation. Rated 5.0 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N), the impact is confidentiality-only: a local account that can read other processes' metadata (for example /proc/<pid>/cmdline via ps) must catch the brief window in which a privileged operator runs the validation, and the stolen token can then be exchanged for RHSM access tokens. There is no public exploit code identified at time of analysis and no CISA KEV entry; Red Hat tracks the issue as CVE-2026-92745 (EUVD-2026-83260).
An integer-wraparound in Cockpit's do_lastlog() login-accounting routine on ILP32 (32-bit) builds allows a low-privileged but authenticated local user holding an administrator-provisioned abnormally large UID to read and modify other users' lastlog records, producing low confidentiality and low integrity impact (CVSS 3.1 base 3.6, AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N). Exploitation requires a 32-bit build, a deliberately created large-UID account, and local access to the host; 64-bit LP64 builds do not overflow and are unaffected, and no public exploit code has been identified at time of analysis.
Denial of service in Red Hat's cockpit-ws web service lets a remote, unauthenticated attacker crash the process by sending a request to the exact configured WebService.UrlRoot prefix without a trailing slash, taking the Cockpit management interface offline. The flaw is only reachable on installations that have explicitly set the non-default WebService.UrlRoot option; default deployments are unaffected, and impact is availability-only with no data exposure or code execution. There is no public exploit identified at time of analysis, no confirmed active exploitation (not in CISA KEV), and exploitation carries a high-attack-complexity rating (AC:H) because the attacker must know and target the exact URL-root path.
Improper filtering of D-Bus broadcast signals in xdg-dbus-proxy allows a sandboxed Flatpak application to receive signal traffic that the configured path, interface, and member restrictions are meant to block, potentially exposing sensitive information carried on the D-Bus session bus and the AT-SPI accessibility bus. The weakness is strictly local and sandbox-scoped: it requires the attacker to already control a Flatpak application running inside the proxy sandbox, involves user interaction, and produces confidentiality-only impact, which is why the assessed CVSS base score is only 3.2 (AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N) with no integrity or availability consequences and no code execution. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Rendering a crafted PDF through Poppler's Splash backend can pin a CPU core at 100% for an extended attacker-controlled duration. The flaw in SplashOutputDev::tilingPatternFill computes an excessive loop count from tiling-pattern geometry near the int32 limit, without allocating memory. This availability-only issue affects Red Hat Enterprise Linux 6, 7, 8, 9, and 10, and Red Hat Hardened Images, and exploitation requires a victim to open a malicious PDF (UI:R, AV:L, PR:N - no privileges required). No public exploit identified at time of analysis, and no confirmed active exploitation.
A NULL pointer dereference in libxml2's XML catalog parser allows a crash-induced denial of service when a catalog file contains a `nextCatalog` element missing its mandatory `catalog` attribute. Affected deployments are those in which an application linked against libxml2 parses an attacker-influenced catalog - Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4 carry vulnerable libxml2 packages per the supplied CPE data. The attack vector is local (AV:L) and requires user interaction (UI:R) to induce parsing of the crafted file, with no authentication required (PR:N); impact is limited to availability (C:N/I:N/A:H) and there is no public exploit identified at time of analysis. Exploitation is constrained by the need for the target to actually perform catalog parsing on untrusted input and by resilient/restartable services absorbing the crash.
CPU exhaustion denial of service in jwcrypto's JWK.import_key() allows a remote unauthenticated attacker to supply a crafted JWK with an arbitrarily large key_ops array and trigger O(n²) duplicate-detection work, consuming CPU proportional to the square of the array length. Any Python application that passes externally-supplied JWK material to this API - via ECDH-ES key agreement, OIDC dynamic client registration, DPoP proof parsing, or ACME account key registration - is vulnerable. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; CVSS rates this at 5.9 (Medium) with AC:H reflecting the requirement that attacker-controlled key material must reach the vulnerable code path.
A path-handling flaw in the containers/storage Go library lets a crafted tar archive containing a malicious whiteout entry (for example 'victim/.wh.') cause UnpackLayer, ApplyLayer, or ApplyUncompressedLayer to replace the extraction destination directory with an arbitrary file. Systems that unpack container image layers with this library — notably Red Hat Enterprise Linux 10, Red Hat Ansible Automation Platform 2, OpenShift Container Platform 4, Quay 3, OpenShift Virtualization, Dev Spaces, and Red Hat Hardened Images — are in scope. Exploitation requires the operator or process to unpack an attacker-supplied archive, and the integrity impact is confined to the local extraction target; no public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV, consistent with the modest CVSS 3.1 base score of 4.4.
Symlink-based path traversal in the buildah/copier Go package allows a crafted tar archive to create files outside the intended extraction directory when the library is used outside of Buildah by a non-root caller. Buildah's own extraction path applies chroot hardening and is explicitly not affected, so real exposure sits with downstream consumers of the package - including Red Hat Ansible Automation Platform 2 and Red Hat Enterprise Linux 10 in the published CPE data, plus other tagged Red Hat products - that unpack untrusted archives with it. Impact is integrity-only (no confidentiality or availability component in the assessed vector), the victim application must actually process the malicious archive (UI:R), EPSS is low at 0.25% (16th percentile), CISA's SSVC records exploitation as none and automatable as no, and no public exploit code has been identified at time of analysis.
GNOME Shell fails to validate the declared dimensions of icons returned by a remote search provider over D-Bus against the actual icon data buffer, producing an out-of-bounds read when an oversized size is supplied. A malicious or compromised search provider registered in a user's session can crash the shell — terminating the desktop session — and may leak fragments of adjacent shell memory. Rated CVSS 6.1 (AV:L/UI:R/C:L/A:H) by Red Hat; no public exploit code or CISA KEV entry was identified at time of analysis, so exploitation currently requires a locally present hostile search provider rather than remote access.
An out-of-bounds read in the SSSD NSS responder allows any local user who can reach the responder's UNIX socket to crash the process by sending a specially crafted service lookup request, degrading local name/service resolution on the host. Only SSSD deployments shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 nodes are listed as affected by the vendor CPE data, and the flaw requires local socket access rather than network reach. There is no public exploit code and no CISA KEV listing; SSVC records exploitation as 'none' and the issue carries a modest CVSS 3.1 base score of 4.0 (availability impact only).
Denial of service in multipathd allows a local attacker with access to the UNIX control socket to permanently block the daemon's listener thread by sending valid commands and then refusing to read the replies. This renders legitimate IPC operations - such as multipath path queries and storage management commands - unable to complete until the daemon is restarted. Red Hat, the reporting source, explicitly confirms the issue is bounded to availability impact only: no privilege escalation, no code execution, and no confidentiality or integrity loss. No public exploit code has been identified at time of analysis.
Heap buffer overflow in the libtiff `tiff2pdf` utility allows local attackers to cause severe memory corruption and application crashes by supplying a crafted BigTIFF file. The root cause is an integer truncation: a 64-bit `StripByteCounts` value is silently narrowed to 32 bits, producing an undersized heap allocation that a subsequent memory copy overflows. Red Hat has issued advisory RHSA-2026:53467 and an upstream fix is available via libtiff GitLab merge request #729; no public exploit or active exploitation has been identified at time of analysis.
Symlink-following in libvirt's qemuTPMEmulatorPrepareHost() allows a local attacker with access to the swtpm service account to redirect a path-based chown() call - executed by libvirtd running as root - to transfer ownership of any arbitrary file on the system to the swtpm user. This affects libvirt on Red Hat Enterprise Linux 6 through 10. With ownership of a sensitive file such as /etc/shadow or a cron directory transferred to swtpm, the attacker gains a privilege escalation primitive beyond the swtpm account boundary. No public exploit or active exploitation has been identified at time of analysis.
Integer overflow in GStreamer's gst-plugins-good isomp4 plugin exposes adjacent heap memory when parsing CEA-608 closed-caption data embedded in specially crafted MP4 or MOV files. The 32-bit unsigned arithmetic wraparound bypasses a bounds check, enabling an out-of-bounds heap read of up to 244 bytes that is forwarded into downstream caption output - leaking process memory to an attacker who controls caption rendering output. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit has been identified at time of analysis, and no active exploitation is confirmed.
Pacemaker Configuration System (PCS) on Red Hat Enterprise Linux 8, 9, and 10 exposes an arbitrary file-read primitive to local members of the 'haclient' group via the `pcs host auth --token` command. The pcsd daemon reads the attacker-specified file path with root privileges, base64-encodes up to 256 bytes of content, and transmits it through cluster node communication channels the attacker controls - enabling exfiltration of short sensitive files such as API tokens, symmetric keys, or credential snippets that are otherwise inaccessible to the attacker. No public exploit has been identified at time of analysis, but the attack requires only local access and group membership, making it a realistic insider-privilege escalation threat in multi-tenant HA environments.
Case-insensitive username comparisons in two code paths of the CUPS scheduler - printer ACL validation and private-attribute filtering - allow an authenticated adjacent-network attacker to bypass username-based access controls in configurations that rely on those ACLs. The bypass exposes private print attributes to users who should be excluded by ACL policy. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified at time of analysis, consistent with the low CVSS base score of 3.0.
Heap out-of-bounds read in CUPS's cupsUTF32ToUTF8() transcoding function exposes partial daemon heap memory to adjacent-network attackers without authentication. The vulnerable code path is reachable via SNMP supply-description parsing, meaning any attacker who can spoof or inject crafted SNMP responses on the same network segment as a CUPS host can trigger the read and potentially leak heap contents from the printing daemon. No active exploitation has been identified, and the adjacent-network attack vector significantly limits the exposure surface.
Symlink-following race condition in GLib2's g_file_replace() allows a local attacker with write access to the destination directory to redirect privileged file writes to arbitrary files. When the G_FILE_CREATE_REPLACE_DESTINATION flag is set and creation of the .goutputstream-XXXXXX temporary file fails, GLib2 unlinks the destination and then recreates it without O_EXCL (exclusive creation) or symlink-safe open semantics, opening a TOCTOU race window. An attacker who wins this race by placing a symlink at the destination path can cause any process using this code path - potentially running with elevated privileges - to overwrite files the attacker cannot directly modify. No public exploit has been identified at time of analysis.
Flatpak's `org.freedesktop.Flatpak.SystemHelper` D-Bus service contains a TOCTOU race condition in the `Deploy()` function where a privileged `chmod` executes before OSTree repository validation completes, allowing a local low-privileged attacker to redirect symlinks to arbitrary system files within that timing window. A successful exploit can yield high-confidentiality impact (reading privileged files) and limited integrity and availability impact (CVSS C:H/I:L/A:L), as the unguarded chmod can be inherited by attacker-controlled symlink targets. No public exploit code or CISA KEV listing has been identified at time of analysis, and the High attack complexity (AC:H) reflects the precision timing required to win the race.
Heap out-of-bounds read in libtpms during TPM 2.0 state restoration allows an adjacent unauthenticated attacker to crash the swtpm process and deny TPM services to dependent virtual machines. The flaw arises in the state-blob parser: an attacker-controlled oversized skip-block length drives the internal INT32 size counter negative; subsequent bounds checks cast that counter to UINT32, wrapping it to a large positive value and bypassing the check, which then drives the parser to read memory outside the heap buffer. Vendor and upstream commit confirm the impact is denial of service only - no data corruption or information disclosure was confirmed. No public exploit or CISA KEV listing has been identified.
HTTP/2 flow-control window mismanagement in libsoup (GNOME's HTTP client/server library) allows a malicious HTTP/2 server to abort a connecting client process or crash its HTTP/2 session. When the client sends a request body sourced from a non-pollable GInputStream, libsoup buffers the data before transmission; a server that then shrinks SETTINGS_INITIAL_WINDOW_SIZE causes the client to copy the full pre-buffered payload into a now-undersized DATA callback without a runtime bounds check, triggering a reachable assertion abort (CWE-617). No public exploit has been identified at time of analysis, and the high-complexity timing requirement constrains practical exploitation.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Key-ID (kid) bypass in the jwcrypto Python JOSE library allows an attacker who holds any valid key within a JWK set to forge a General JSON Serialization JWS that satisfies verification for a different kid, effectively impersonating another tenant, user, or service. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 7-10, Red Hat OpenShift AI (RHOAI), and Red Hat OpenStack Platform 16.2, wherever jwcrypto performs JWS signature verification with kid-based authorization. No public exploit or CISA KEV listing has been identified at time of analysis, and the EPSS score is not provided, but the integrity impact is high for multi-tenant architectures.
Crash of the gvfsd-mtp daemon in gvfs is achievable by anyone who can connect a malicious USB MTP device to a target Linux system. The do_read() function in gvfsbackendmtp.c accepts the byte-count reported by the device at face value and passes it uncapped to memcpy(), causing an out-of-bounds read that triggers a segmentation fault when the device deliberately over-reports its response length. The vulnerability affects gvfs as packaged across Red Hat Enterprise Linux 6 through 10; no public exploit has been identified and exploitation is constrained by physical proximity.
Heap buffer overflow in the gvfs AFP (Apple Filing Protocol) backend allows a malicious AFP server to crash the gvfsd-afp process on connecting clients, resulting in denial of service. When a client mounts an AFP share, the DSI (Data Stream Interface) read path accepts a server-supplied length value without validating it against the pre-allocated reply buffer, enabling the server to write past buffer boundaries. This affects RHEL 6 through 10 and requires user interaction to mount a malicious share; no public exploit or CISA KEV listing has been identified at time of analysis.
Uninitialized heap memory disclosure in gvfs's SFTP backend enables a malicious SFTP server to deterministically defeat ASLR on client systems running RHEL 6 through 10. When a user mounts a crafted SFTP share, the read_string() parser allocates a buffer for the FXP_HANDLE response but does not verify that the buffer is fully populated; the client subsequently echoes the uninitialized remainder - containing heap base pointers and the libgio load address - back to the attacker on every subsequent file-handle request. No public exploit has been identified at time of analysis, and the issue does not appear in CISA KEV, but the ASLR bypass it achieves is a high-value precursor for chained memory-corruption attacks against gvfsd-sftp.
Unauthenticated enumeration of internal PKI topology is possible in Red Hat Certificate System 9 through an unprotected REST endpoint. Any network-accessible client can issue GET /ca/rest/securityDomain/hosts and receive a structured inventory of all participating CA subsystem hosts, their roles, and security domain membership - without presenting credentials, a client certificate, or a session token. While the direct CVSS impact is rated medium (5.3), the real-world significance lies in enabling precise reconnaissance of internal PKI infrastructure that could facilitate targeted follow-on attacks against specific subsystems. No active exploitation is confirmed and no public exploit code has been identified at time of analysis.
Unauthenticated network attackers can elicit Java stack traces from Red Hat IdM's Dogtag CA REST enrollment endpoint (POST /ca/rest/certrequests) by submitting malformed requests, causing HTTP 500 responses that expose internal implementation details under CWE-209. The same error path simultaneously amplifies the CA debug log with large multi-line stack traces, creating a log-fill resource exhaustion vector that drives disk growth and I/O contention on affected RHEL 6 through 10 deployments. No public exploit has been identified at time of analysis, but the attack requires no authentication and low complexity, making it accessible to unskilled opportunistic attackers targeting IdM infrastructure.
Heap metadata corruption in the popt command-line parsing library's `poptConfigFileToString` function can be triggered by a local, low-privileged attacker who supplies specially crafted configuration file content to an affected host. Successful exploitation causes the consuming process to crash, resulting in denial of service. CVSS 2.5 (Low) reflects the strictly local, high-complexity exploitation path with no confidentiality or integrity impact; no public exploit code or active exploitation (CISA KEV) is known at time of analysis.
Out-of-bounds memory write in libsolv crashes RPM-based package manager tools (dnf, yum, zypper) when processing a corrupted or specially crafted .solv repository cache file. The root cause is an absent array-index bounds check on directory-id values read from compressed filelist data during .solv file rewriting - but because the out-of-bounds write stores only a fixed, non-attacker-controlled value, the vendor explicitly rules out arbitrary code execution, confining impact to denial of service. No public exploit has been identified and no active exploitation is confirmed; note that the 'RCE' metadata tag conflicts directly with the description and appears to be erroneous.
Denial of service in jwcrypto's JWE.deserialize() function allows a remote unauthenticated attacker to crash any service that processes untrusted JWE tokens by submitting a malformed compact serialization containing an excessive number of period delimiters, triggering uncontrolled memory allocation and a MemoryError. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 9 and 10, OpenShift AI (RHOAI), and OpenStack Platform 16.2 as disclosed via Red Hat Bugzilla 2524147 and upstream advisory GHSA-96rv-c4vc-h4f4. No public exploit code or CISA KEV listing exists at time of analysis, and impact is confined to availability with no confidentiality or integrity exposure.
Out-of-bounds write in gdk-pixbuf's JPEG decoder affects any application on Red Hat Enterprise Linux 6 through 10 that renders JPEG images containing chunked ICC profile markers. When ICC profile parsing encounters an error, stale size metadata persists after the profile buffer is freed; a subsequent allocation within the same decode operation then writes beyond buffer boundaries, crashing the application. No active exploitation has been identified (no CISA KEV listing), and no public exploit code is known at time of analysis, but the availability-only impact and user-interaction requirement make this a realistic denial-of-service risk in desktop and server image-processing contexts.
CPU exhaustion in libsoup's HTTP Range header processing affects any SoupServer deployment carrying the CVE-2025-32907 fix but not MR !550. Supplying a Range header with approximately 25,000 repeated satisfiable byte ranges triggers an O(N²) coalescing loop - each g_array_remove_index() call induces an O(N) memmove on GArray - blocking the server's event loop for roughly 90 ms per request from a single unauthenticated client. The description explicitly rules out memory corruption and information disclosure; this is a pure availability issue with no public exploit identified at time of analysis.
Resource exhaustion via crafted SASL UNBIND in 389 Directory Server (389-ds-base) allows a remote authenticated attacker to stall connections and deny LDAP service to legitimate users. Affected deployments span Red Hat Directory Server 11, 12, and 13, plus 389-ds-base as packaged across RHEL 6 through 10. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 6.5 rating (AV:N/AC:L/PR:L) indicates low-complexity network exploitation requiring only a low-privilege LDAP bind - a realistic bar in any environment with shared directory users.
Improper certificate validation in JSS (Java Security Services) allows the JSSTrustManager class to accept CA certificates from the NSS database that lack TRUSTED_CA trust flags, meaning certificates never explicitly designated as trust anchors can still be used to anchor TLS chains. In non-default deployments where certificate revocation checking has been disabled, this creates a viable path for a man-in-the-middle attacker to forge certificates accepted by PKI client connections, with high confidentiality and low integrity impact. No public exploit has been identified at time of analysis, and the AC:H CVSS rating reflects the meaningful attack complexity - MITM positioning plus a specific non-default configuration must both be present.
Denial of service in FreeIPA's ipa-enrollment SLAPI plugin allows any authenticated LDAP client to crash the 389 Directory Server by sending a malformed extended operation. The flaw (CWE-476, null pointer dereference) is triggered by omitting the request value for the JOIN_OID in the ipa-enrollment extended operation, causing the server to dereference a null pointer and crash. No public exploit or active exploitation has been identified at time of analysis; however, the low attack complexity and network-accessible vector make this a credible threat against any RHEL Identity Management deployment.
Resource exhaustion in FreeIPA's OTP key processing path allows any low-privilege authenticated domain user to degrade the IPA authentication service. By submitting an oversized One-Time Password key, the user triggers an unbounded decode/re-encode cycle (CWE-770) that consumes excessive CPU and memory, degrading availability for all dependent systems and users. No public exploit code exists at time of analysis, and this CVE is not listed in CISA KEV; however, the AV:N/PR:L CVSS vector means any valid domain account on a network-accessible FreeIPA instance is sufficient to trigger the condition.
Integer truncation in libsoup's SoupServer Range-header comparator silently drops byte ranges from HTTP 206 Partial Content responses when the target resource exceeds approximately 2 GB. The sort_ranges() function in soup-message-headers.c narrows a 64-bit offset subtraction to a 32-bit int return value, inverting the comparator sign whenever offsets differ by more than INT_MAX, causing incorrect range sorting and silent omission of content. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation requires network access to a SoupServer instance serving files larger than ~2 GB.
Heap overread in swtpm's SWTPM_NVRAM_CheckHeader() function allows local low-privileged users to crash the swtpm daemon and leak heap memory contents to system logs on Red Hat Enterprise Linux 8, 9, and 10. The root cause is a classic sizeof-pointer vs. sizeof-struct confusion: the guard compares buffer length against sizeof(bh) (pointer width, 8 bytes on 64-bit) rather than sizeof(*bh) (actual struct size), permitting undersized buffers to bypass validation and triggering a 2-byte heap overread on 64-bit systems or 6 bytes on 32-bit. No public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds memory read in BlueZ's AVRCP implementation allows a physically proximate attacker - within Bluetooth radio range - to crash the bluetoothd daemon and potentially leak heap memory contents by sending a malformed GetFolderItems response. The flaw resides in parse_media_element() and parse_media_folder(), which fail to validate packet length fields before reading. Exploitation requires the victim to interactively pair with the attacker-controlled malicious Bluetooth device. No public exploit code or CISA KEV listing has been identified at time of analysis.
Undertow's HTTP response header writing path silently truncates 16-bit Unicode characters to 8-bit bytes via a narrowing cast in the `writeString()` method, enabling remote unauthenticated attackers to inject ASCII control characters or special symbols into response headers when an application passes unsanitized user-controlled input into those headers. Affected Red Hat distributions include RHEL 8/9/10, JBoss EAP 7, Red Hat Build of Apache Camel for Spring Boot 4, and Red Hat Single Sign-On 7, as reported by Red Hat via Bugzilla #2516038. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Privileged file corruption and denial of service in sblim-sfcb (Small Footprint CIM Broker) on Red Hat Enterprise Linux 6 through 10 is achievable by a local low-privileged attacker exploiting a symlink-based race condition during privileged instance migration. The SFCB daemon writes to a temporary file in /tmp without atomic safety guarantees, allowing an attacker who repeatedly races a symbolic link into place to redirect that privileged write to an arbitrary file path. No public exploit has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Out-of-bounds memory read in sblim-sfcb's provider-manager IPC message parser allows a local low-privileged attacker to crash the provider-manager process, causing denial of service and potentially leaking limited adjacent memory contents. The vulnerability stems from unsafe deserialization of attacker-controlled IPC messages without adequate boundary validation, affecting sblim-sfcb as shipped across Red Hat Enterprise Linux versions 6 through 10. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained to local system access.
Insecure temporary file creation in sblim-cmpi-base provider registration scripts exposes Red Hat Enterprise Linux 6 through 10 to a local symlink attack, enabling a low-privileged user to redirect privileged file writes to arbitrary paths. When registration scripts execute under elevated (root) privileges, an attacker who pre-positions a symlink in a world-writable directory can cause those scripts to overwrite root-owned files, disrupting system services or integrity. No public exploit code has been identified at time of analysis, and exploitation requires both local access and favorable timing, but the integrity and availability impact on a compromised host are rated high by the vendor.
The iscsiuio DHCP parser in open-iscsi crashes when processing maliciously crafted DHCP reply packets, disrupting iSCSI storage connectivity or network boot on affected hosts. An integer underflow (CWE-191) in the IPv4/UDP DHCP reply parsing path triggers an out-of-bounds read, causing the iscsiuio process to terminate; impact is limited to availability with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and the adjacent-network attack vector constrains the realistic attacker population to the same Layer-2 segment as the target.
Integer underflow in open-iscsi's iscsiuio daemon crashes the process when parsing malformed DHCPv6 Advertise packets with a truncated UDP length field, disrupting iSCSI storage connectivity. Systems running Red Hat Enterprise Linux 9 and 10 with iscsiuio actively engaged in a DHCPv6 exchange are exploitable by any unauthenticated attacker on the same adjacent network segment. No active exploitation (CISA KEV) or public proof-of-concept has been identified at time of analysis; real-world impact is highest in shared or multi-tenant storage network environments where adjacency cannot be guaranteed.
Denial of service in open-iscsi's iscsiuio daemon allows an unauthenticated attacker on the same local network segment to render the daemon permanently unresponsive by sending a single crafted ICMPv6 Router Advertisement carrying a zero-length option, triggering an infinite loop and sustained CPU exhaustion. Affected deployments include Red Hat Enterprise Linux 9 and 10 systems where iscsiuio is active for iSCSI hardware offload. A secondary out-of-bounds read risk exists when a short IPv6 payload is processed, though no memory corruption or data exposure has been confirmed from available intelligence; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer underflow in GStreamer's avidemux element allows a remote unauthenticated attacker to trigger heap out-of-bounds read and write, heap memory disclosure, and application crash by delivering a crafted AVI file containing a malformed FUJIFILM strd chunk. The gst_avi_demux_parse_strd() function decrements its remaining-length counter by fixed offsets without bounds checking, causing unsigned integer wraparound for payloads of exactly 106 or 107 bytes. Because avidemux is auto-plugged by GStreamer's high-level components (playbin, decodebin, gst-discoverer), any application that opens or previews a media file - including GNOME Files, Nautilus, Totem, and many others - can trigger the vulnerability without user awareness. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available in gst-plugins-good 1.28.6.
Out-of-bounds read in GStreamer's avidemux plugin (gst-plugins-good) allows a remote, unauthenticated attacker to crash media-processing applications and potentially leak memory contents by supplying a crafted AVI file. The flaw resides in gst_avi_demux_riff_parse_vprp(), where the count of video field descriptors is derived by dividing remaining buffer size by an attacker-controlled vprp->fields value rather than the struct size, causing the parser to treat more descriptors as valid than the buffer holds. User interaction is required to trigger the bug (the victim must open or stream the malicious AVI via playbin or decodebin), and the primary confirmed impact is denial of service; limited information disclosure is also possible. No public exploit or CISA KEV listing has been identified at time of analysis.
Use-After-Free vulnerabilities in the GNU linker (ld) component of binutils crash the linker process when processing crafted object or archive files during LTO-enabled linking on Red Hat Enterprise Linux systems. The flaws exist at three distinct dereference points in add_archive_element() in ld/ldmain.c, where plugin_maybe_claim() frees the BFD object but the caller retains dangling pointers that are subsequently accessed. The attack surface is confined to build-time environments, with the primary realistic threat being a supply chain attack introducing a malicious object file into CI/CD pipelines or developer build systems; no public exploit code or active exploitation has been confirmed at time of analysis.
Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash the directory service with a single crafted BIND request. The flaw resides in `get_ldapmessage_controls_ext()`, which frees a parsed controls array when rejecting an unknown critical Session Tracking control but fails to clear the corresponding SLAPI_REQCONTROLS pblock slot - causing operation teardown to free the same pointer a second time. Affected deployments include Red Hat Directory Server 11 through 13 and the 389-ds-base package across all supported RHEL versions (6-10). No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; the CVSS AC:H rating reflects that reliable heap exploitation requires specific memory layout conditions rather than a trivially repeatable one-shot crash.
HTTP request smuggling in Undertow's ChunkReader component enables unauthenticated remote attackers to inject out-of-sync requests, bypassing upstream security controls such as authentication layers or reverse-proxy ACLs. Affected deployments include JBoss EAP 7, WildFly, Red Hat Enterprise Linux 8/9/10, Red Hat Data Grid 8, Red Hat Fuse 7, Red Hat Single Sign-On 7, and several Apache Camel-based Red Hat products. No confirmed active exploitation or public proof-of-concept has been identified at time of analysis; the CVSS 5.3 Medium score reflects limited direct impact, though real-world risk in proxy-fronted architectures is meaningfully higher than the score alone suggests.
Cleartext credential exposure in Red Hat insights-core allows SSSD LDAP bind passwords (ldap_default_authtok) and Pacemaker fence device credentials to be included unredacted in diagnostic archives uploaded to console.redhat.com. The redaction layer uses a naive string-match on the literal key name 'password', leaving non-standard credential field names - such as those used by SSSD and Pacemaker - completely unprotected before archive upload. With CVSS PR:L, a threat actor with authenticated access to an organization's Red Hat Insights console can retrieve these cleartext credentials from stored archives. No public exploit identified at time of analysis and not confirmed in CISA KEV.
Sensitive guest disk contents are exposed to any local user on Red Hat Enterprise Linux KVM hosts due to `qemu-img` creating new volume image files with world-readable permissions during libvirt storage clone or convert operations. Affected platforms span RHEL 6 through 10 and RHEL for Nvidia 26. No public exploit code has been identified and this vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at time of analysis, but the CVSS C:H rating reflects full guest disk exposure to a low-privileged local attacker.
Missing authorization on CleanAllRUV and Abort CleanAllRUV LDAP extended operations in 389 Directory Server (Red Hat Directory Server 11-13) allows unauthenticated remote attackers - when the default anonymous access setting is active - to manipulate replication metadata, purge changelog records, and abort administrator-initiated cleanup tasks. The affected operations are replication-maintenance primitives that bypass the authorization layer entirely (CWE-862), meaning no account or session is required under default configuration. No public exploit code or active exploitation in CISA KEV has been identified at time of analysis, but the network-accessible, zero-authentication attack surface in a widely deployed enterprise directory server makes this a notable availability and integrity risk.
Integer overflow in p11-kit's RPC message parser on 32-bit systems allows a local attacker, or any principal with access to a reachable RPC channel, to crash the p11-kit process via a heap out-of-bounds write, resulting in Denial of Service. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.
SELinux label manipulation via TOCTOU race condition in the policycoreutils fixfiles script allows a local low-privileged attacker to corrupt SELinux mandatory access control labels on arbitrary system files, including security-critical targets such as /etc/shadow. The flaw affects fixfiles when run in relabel or restore mode across all supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained by both a required race condition win and the need for an administrator to actively invoke fixfiles.
Persistent denial of service in libkcapi's AIO interface allows a local attacker to permanently hang an affected application thread by exploiting improper error-state handling in _kcapi_aio_read_all(). Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4 - all environments where applications leverage libkcapi's asynchronous cryptographic operations. No public exploit code or active exploitation has been identified at time of analysis; the high attack complexity (AC:H) and local-only attack vector substantially limit real-world risk beyond targeted or insider-threat scenarios.
IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.
Stack-based out-of-bounds read in stunnel's s_vlog logging function allows remote unauthenticated attackers to crash the service by sending protocol inputs that generate log messages exceeding 1024 bytes via vsnprintf. The primary impact is service disruption (availability), with a limited integrity impact in corner cases where trailing newline characters in the stack buffer can be overwritten with null bytes. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
SSRF bypass in stunnel 5.79 and earlier allows authenticated SOCKS proxy clients to circumvent intended localhost access restrictions by supplying IPv4-mapped IPv6 addresses (e.g., ::ffff:127.0.0.1) or unspecified addresses (0.0.0.0, ::) in proxy requests. Exploitation reaches loopback-bound services on the stunnel host - services deliberately isolated from external network access - potentially exposing internal APIs, administrative interfaces, or other localhost-only endpoints. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis.