Gnome
Monthly
Infinite loop in json-glib's JSONPath slice evaluator lets an attacker hang any application that passes untrusted JSONPath strings to json_path_query(). A slice expression containing a negative step drives the evaluator into a non-terminating loop, spinning CPU and stalling the calling thread, so impact is limited to availability (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, 7.5) with no disclosure or modification. The prerequisite is narrow but real: the embedding application must evaluate attacker-controlled JSONPath; code that only runs developer-authored queries is not exposed. No public exploit code was identified at time of analysis and the issue is not in CISA KEV, but the underlying flaw is trivially reachable by a single crafted query string and has been triaged for remediation this week.
Local privilege escalation in the GNOME NetworkManager SSTP plugin allows a low-privileged local user who can create or modify an SSTP VPN connection profile to inject OS commands that are executed with root privileges by the pppd pty shell when the connection is activated. The vulnerability, tracked as CVE-2026-91838, is a command injection (CWE-78) with a CVSS score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The SSTP plugin is an optional, non-default component, and no public exploit code has been identified at the time of analysis.
Heap-based buffer overflow in the Dia diagram editor's WPG file importer allows arbitrary code execution or process crash when a user opens a crafted WPG file. The WPG color palette buffer is allocated for exactly 256 entries (768 bytes), but the COLORMAP record parser fails to validate that the supplied start index (i16) or total entry count (iNum16) stay within that bound, allowing a malicious file to drive fread() to write beyond the heap allocation. Affecting all Dia versions on the upstream master branch through at least 2026-08-21, no public exploit or patch version has been confirmed at time of analysis, though the description provides sufficient detail to construct proof-of-concept input.
Stack-based buffer overflow in GNOME Dia diagram editor (0.98.0 and earlier) permits stack exhaustion and potential return-address corruption when a victim opens a crafted .dia XML file containing a Bus object with an attacker-controlled bus_handles value and then moves a handle in the diagram. The root cause - an unbounded g_alloca() call driven by an unvalidated file attribute - is also present in objects/Misc/tree.c via Tree objects, widening the attack surface. No public exploit or CISA KEV listing exists at time of analysis, but the GitLab issue provides sufficient technical detail for proof-of-concept development.
HTTP request smuggling in libsoup (GNOME's HTTP client/server library) enables network-accessible attackers to inject hidden requests into backend streams by exploiting a parsing differential between libsoup's permissive chunked transfer encoding parser and strict RFC 9112-compliant frontend proxies. All libsoup versions are affected as tracked under CPE cpe:2.3:a:gnome:libsoup, with confirmed vendor impact across Red Hat Enterprise Linux 6.0 through 10.0. No public exploit code or active exploitation has been identified at time of analysis; SSVC classifies exploitation as none with non-automatable, partial technical impact.
Denial of service in GNOME GLib (versions before 2.88.1) arises when g_dbus_node_info_new_for_xml() parses malformed D-Bus introspection XML that nests a <node> element inside <method>, <signal>, <property>, or <arg>. This state-confusion bug triggers an unsigned integer underflow/overflow (CWE-191) and a subsequent out-of-bounds read, crashing any application or service that parses attacker-influenced introspection data. No public exploit identified at time of analysis, EPSS is low (0.34%), and CISA SSVC rates exploitation as none with only partial technical impact.
Arbitrary file disclosure in GLib's GDBus client affects the DBUS_COOKIE_SHA1 SASL authentication mechanism, where the client fails to validate the server-supplied cookie_context parameter. A malicious or compromised D-Bus server can send a cookie_context containing path traversal sequences, forcing the client to read attacker-chosen files and leak their contents by confirming guessed values against the returned authentication hash. No public exploit has been identified and it is not in CISA KEV; EPSS is low at 0.30% (22th percentile), consistent with the SSVC assessment of no known exploitation.
Denial of service (and a 1-byte out-of-bounds read) in GNOME GLib before 2.88.1 arises from an off-by-one error in g_key_file_get_locale_string_list() in gkeyfile.c when a parsed key file contains an empty value. Any application built on GLib that loads attacker-influenced .desktop/.ini-style key files can be crashed if the over-read crosses a page boundary, with a minor information-disclosure component from the single out-of-bounds byte. Publicly available exploit code exists (SSVC 'poc'), but it is not on CISA KEV and EPSS is low (0.24%, 15th percentile), indicating no evidence of widespread active exploitation.
Buffer over-read in GLib's giochannel line-reading code (g_io_channel_read_line_backend) affects the GNOME GLib library prior to version 2.88.1, where an application that configures a multi-byte custom line terminator triggers memcmp to read past the end of the internal GString buffer. Depending on memory layout, this leaks up to 7 bytes of adjacent heap memory (minor information disclosure) or crashes the process when the over-read crosses an unmapped page boundary (denial of service). There is no public exploit identified at time of analysis, EPSS is low (0.27%), and CISA SSVC rates exploitation as none.
Buffer over-read in GNOME GLib's g_regex_replace() lets remote attackers leak 1-5 adjacent bytes of process memory and crash applications when regex replacement is performed with the G_REGEX_RAW compile flag combined with case-change replacement escapes. The internal string_append helper applies UTF-8 aware routines to matched substrings even though G_REGEX_RAW treats the buffer as raw bytes, reading past the intended boundary. There is no public exploit identified at time of analysis and EPSS is low (0.26%, 18th percentile), but the flaw is broadly reachable because GLib underpins the GNOME stack and ships across Red Hat Enterprise Linux 6-10.
Out-of-bounds read of two bytes in GLib's g_date_time_get_ymd() (glib/gdatetime.c) lets attackers corrupt date output and trigger logic errors that may cause denial of service when an application processes an invalid GDateTime produced by g_date_time_add_full(). It affects the GNOME GLib core utility library shipped across Red Hat Enterprise Linux 6 through 10, with fixes in GLib 2.88.1 and 2.86.5. There is publicly available exploit code exists per SSVC (proof-of-concept), no confirmed active exploitation, and EPSS is low at 0.27% (19th percentile).
Out-of-bounds read in GNOME GLib's GVariant serialiser allows remote attackers to leak a single byte of adjacent memory and to crash applications that deserialise untrusted GVariant data. The flaw sits in gvs_tuple_is_normal() in glib/gvariant-serialiser.c, where an alignment-padding bounds check uses '>' instead of '>=', reading one byte past the buffer; when that byte falls across a page boundary the process faults, producing a denial of service. No public exploit identified at time of analysis, and EPSS is low (0.26%), but GLib's near-universal presence on Linux systems makes the exposure broad.
Use-after-free in libxml2's xmlParseInternalSubset function affects GNOME libxml2 versions 2.9.11 through 2.11.0 and can be triggered remotely by crafted XML containing abusive entity resolution, leading to denial of service of any application that parses untrusted XML with this library. Publicly available exploit code exists (CVSS 4.0 E:P) but the issue is not listed in CISA KEV, indicating proof-of-concept demonstration rather than confirmed active exploitation. The flaw was disclosed by Canonical and tracked in GNOME GitLab work item 1058 and Ubuntu Launchpad bug 2141260.
Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
backend/comics/comics-document.c (aka the comic book backend) in GNOME Evince before 3.24.1 allows remote attackers to execute arbitrary commands via a .cbt file that is a TAR archive containing a. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 76.7%.
Arbitrary file overwrite in GNOME Epiphany 47.0 and later allows an attacker-crafted WebExtension package to truncate and replace an existing user-writable file with attacker-controlled content and permission bits. The installer in src/webextension/ephy-web-extension-manager.c used libarchive with archive_read_support_format_all(), so a TAR archive renamed to *.xpi was accepted instead of only genuine ZIP files; a hard-link entry inside that TAR, combined with archive_write_disk options including ARCHIVE_EXTRACT_PERM, redirects the write onto an attacker-chosen existing file. The victim must deliberately install or open the malicious .xpi (UI:R, local delivery), severity is assessed at CVSS 5.5 with integrity-only impact, and no public exploit was identified at time of analysis; an upstream fix restricting the installer to ZIP format only has been merged but a tagged patched release is not confirmed in the available data.
Epiphany (GNOME Web) 45.0 through 51.x writes a stored PERMIT for both the webcam and microphone permission of a site origin whenever a user answers an unrelated Clipboard or Website Data Access prompt, so the site can call getUserMedia afterwards without a dedicated camera/microphone dialog and capture audio and video. The root cause is a malformed else-if in set_permission() of src/ephy-window.c whose condition is a non-zero enum constant, making the branch unconditional for the two permission types that the permissions manager does not persist. Exploitation is conditional: the victim must visit the attacker's page and click Allow on a clipboard or third-party storage prompt (CVSS 3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, 6.5, CWE-863), and no public exploit code or CISA KEV entry was identified at time of analysis.
Out-of-bounds read in Eye of GNOME (eog) when parsing a crafted PNG with malformed ICC color-profile metadata allows an attacker who convinces a user to open the image to crash the viewer and potentially expose limited memory contents. Affected deployments are GNOME desktop systems, including the Red Hat Enterprise Linux 6 through 9 package scope identified in CPE data; headless servers without eog installed are not exposed. Exploitation requires user interaction via a local vector, and no public exploit or CISA KEV confirmation was identified at time of analysis.
Heap-based buffer overflow in the OLE2 parser of GNOME libgsf (function ole_info_read_metabat in gsf/gsf-infile-msole.c) affects versions up to 1.14.60 and allows remote attackers to corrupt heap memory when a victim opens, previews, or otherwise processes a crafted OLE2 compound document with an application that relies on the library. The required user interaction (UI:P) prevents a fully unattended trigger, and the assessed impact is limited to low confidentiality, integrity and availability effects rather than confirmed code execution. No public exploit identified at time of analysis; an upstream fix commit has been published, and the issue fits a routine monthly patch cycle rather than an emergency response.
Rendering a crafted XPS document drives GNOME libgxps through 0.3.2 (the renderer used by consumers such as Evince) into a heap out-of-bounds read inside path_geometry_start_element(), allowing an attacker to crash the consuming application and leak adjacent heap bytes into rendered output. The trigger is a PolyBezierSegment or PolyQuadraticBezierSegment Points attribute whose point count is not a multiple of three (bezier) or two (quadratic), so exploitation is limited to a local, file-based attack that requires the victim to open or render the malicious document via user interaction (CVSS 4.0 AV:L/UI:P, PR:N) with no authentication or privilege bypass, no code execution, and only low confidentiality impact alongside high availability impact. An independent assessment scores the flaw 6.9 (medium) using CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H, and no public exploit identified at time of analysis despite a public technical writeup documenting the arity mismatch; the affected range is captured by the wildcard CPE cpe:2.3:a:gnome:libgxps:*:*:*:*:*:*:*:*.
Arbitrary local file exfiltration is possible in evolution-data-server (EDS) when a calendar event's ATTACH property contains a file:// URI: on saving the event, EDS reads the referenced local file, base64-encodes it, and uploads it back to the calendar server. Exploitation requires an authenticated attacker with write access to a shared or subscribed CalDAV calendar (CVSS PR:L) plus the victim interacting with the malicious event (UI:R), and is limited to files readable by the victim's own account - confidentiality is the only impacted property (CVSS 5.7, CWE-200). No public exploit code has been identified at time of analysis, and the flaw is rated a moderate-priority information-disclosure issue rather than an urgent one.
A heap-based buffer overflow in the PNG metadata reader of Eye of GNOME (eog) allows an attacker to potentially achieve arbitrary code execution or cause a denial of service (application crash) when a user opens a specially crafted PNG file. Exploitation requires user interaction and local access, but the vulnerability is unauthenticated (no privileges required) according to the CVSS vector PR:N. No public exploit code or confirmed active exploitation has been identified at time of analysis; the risk is constrained by the need for a user to open the malicious file on a system with eog installed.
Opening a crafted Gnumeric workbook can trigger a heap use-after-free (CWE-416) during XML parsing of a malformed SheetObjectComponent element, crashing the application and causing a denial of service. This affects GNOME Gnumeric across versions (CPE: cpe:2.3:a:gnome:gnumeric:*:*:*:*:*:*:*:*). The vulnerability requires local access and user interaction (CVSS:3.1/AV:L/AC:L/PR:N/UI:R), and no public exploit identified at time of analysis.
Stack-based denial of service in GIMP's Seattle FilmWorks (SFW) image plugin crashes the application when a crafted SFW file triggers an unbounded variable-length array allocation on the stack. The flaw affects all GIMP versions per the GNOME CPE string and is confirmed across Red Hat Enterprise Linux 6 through 9. An attacker who can deliver a malicious SFW file to a user can reliably crash the GIMP process with no code execution or data exposure; no public exploit has been identified at time of analysis.
libsoup leaks proxy credentials to destination servers via Proxy-Authorization header attachment after CONNECT tunnel establishment. Affects libsoup when used with HTTP proxies for HTTPS tunneling. No public exploit is known, and exploitation probability is low (EPSS 0.23%).
Heap buffer over-read in libsoup's multipart response parser allows remote, unauthenticated attackers to crash client applications or leak heap memory. The flaw occurs when processing crafted HTTP multipart responses from a malicious server. No active exploitation or public exploit code is known, and EPSS indicates low exploitation probability.
Heap out-of-bounds read in libsoup's multipart HTTP message parser allows remote attackers to crash affected applications or leak heap memory contents. An integer type mismatch between the calling code and soup_headers_parse() causes the length parameter to be incorrectly truncated, enabling a read beyond the allocated heap buffer boundary. No active exploitation has been identified (no CISA KEV listing, no public POC), and the CVSS score of 4.2 with AC:H/UI:R reflects meaningful real-world friction for successful exploitation.
Sandbox-escaping information disclosure in Yelp (the GNOME help viewer) lets a malicious Flatpak application read arbitrary user-readable files on the host. By using the OpenURI portal to open crafted help content that embeds an untrusted CSS stylesheet inside a structured SVG document, an attacker abuses an overly permissive Content Security Policy supplied by yelp-xsl to force Yelp to evaluate local XML inclusions and exfiltrate file contents via remote CSS resource requests, defeating Flatpak's intended isolation. The flaw was disclosed publicly (GNOME developer blog by Michael Catanzaro, May 2026) and tracked by Red Hat; no public exploit identified at time of analysis and it is not listed in CISA KEV.
libsoup versions prior to the patched release contain an integer underflow vulnerability in zero-length resource processing that enables unauthenticated remote attackers to read adjacent memory or trigger denial of service. The vulnerability stems from improper bounds checking during content handling, affecting any application using the vulnerable libsoup library for HTTP operations. No public exploit code has been identified, and the low EPSS score (0.04%, percentile 11%) indicates exploitation is unlikely in practice despite the moderate CVSS score of 6.5.
Libsoup's digest authentication mechanism fails to validate nonce reuse and enforce proper nonce-count incrementation, enabling attackers to replay captured authentication headers to bypass access controls. A remote attacker can exploit this to impersonate legitimate users and access protected resources without valid credentials. No patch is currently available.
libsoup's improper validation of HTTP Range headers enables remote attackers to read sensitive server memory when processing specially crafted requests against vulnerable SoupServer instances. The flaw affects GNOME-based systems using certain build configurations and requires no authentication or user interaction. No patch is currently available, and exploitation likelihood remains low at 0.1% EPSS.
HTTP request smuggling in libsoup allows remote attackers to exploit non-compliant chunk header parsing by injecting malformed requests with LF-only line endings instead of proper CRLF formatting. Without requiring authentication, an attacker can cause libsoup to interpret multiple HTTP requests from a single network message, potentially leading to information disclosure. No patch is currently available for this vulnerability.
libsoup's HTTP redirect handling fails to strip Proxy-Authorization headers when requests are forwarded to different hosts, allowing proxy credentials to be exposed to unintended third-party servers. Applications relying on libsoup for HTTP communication are vulnerable to disclosure of sensitive proxy authentication data. No patch is currently available.
HTTP header injection in libsoup through CRLF sequences in the Content-Disposition header allows unauthenticated remote attackers to inject arbitrary headers or split responses without user interaction. Public exploit code exists for this vulnerability. The flaw affects any application using vulnerable versions of libsoup to process untrusted HTTP headers, with no patch currently available.
libsoup's improper handling of URL-decoded input in HTTP proxy configurations allows remote attackers to inject CRLF sequences into the Host header, enabling injection of arbitrary HTTP headers or request bodies. Public exploit code exists for this vulnerability, which could allow attackers to manipulate downstream services through compromised proxy requests. Affected applications using libsoup with HTTP proxy functionality are at risk of integrity compromise, though no patch is currently available.
Integer overflow in GLib's GIO escape_byte_string() function enables heap buffer overflow and denial-of-service when processing malicious filesystem attribute values over the network. The vulnerability affects GLib across GNOME, Red Hat Enterprise Linux 7-10, and OpenShift 4.0+, requiring only unauthenticated network access and user interaction. EPSS score of 0.07% (percentile 22) indicates low exploitation probability despite CVSS 6.5, suggesting the attack requires specific file/attribute handling conditions; no public exploit or active exploitation (CISA KEV) confirmed at analysis time.
Heap corruption in GLib (GNOME's core C utility library) lets remote attackers trigger a buffer-underflow in the GVariant parser by supplying maliciously crafted serialized/text input, resulting in denial of service and potentially arbitrary code execution. Any application linking GLib that deserializes untrusted GVariant data is exposed, which spans broad swaths of the Linux desktop and system stack across Red Hat Enterprise Linux 7-10 and SUSE. There is no public exploit identified at time of analysis, and EPSS exploitation probability is low (0.26%, 49th percentile) despite the 9.8 CVSS, indicating the headline severity is not yet matched by observed exploitation interest.
Heap-based buffer overflow in GLib's g_escape_uri_string() function allows local attackers to achieve high-integrity and high-availability impacts through integer overflow in escaped string length calculation. The vulnerability affects Red Hat Enterprise Linux 9.0 and 10.0 across multiple architectures (x86_64, ARM64, IBM Z, PowerPC). Vendor patches are available via multiple RHSA advisories. Publicly available exploit code exists, but EPSS score remains extremely low (0.01%, 1st percentile), suggesting minimal real-world exploitation activity despite the availability of technical details.
Denial of service in GNOME GLib on Windows platforms occurs when an application uses GLib's process-spawning functions with excessively long command lines, causing the spawn operation to fail or crash the host process and disrupt availability. The flaw affects the GLib library's Windows command-line handling and impacts any Windows application that links GLib and passes attacker-influenced long argument strings to a child process. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV; despite Red Hat tags mentioning RCE/Code Injection, the CVSS impact metrics confirm availability-only impact (C:N/I:N/A:H).
A flaw was found in the GIF parser of GdkPixbuf’s LZW decoder. When an invalid symbol is encountered during decompression, the decoder sets the reported output size to the full buffer length rather than the actual number of written bytes. This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.
A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.
In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. Rated medium severity (CVSS 4.9), this vulnerability is no authentication required. Public exploit code available.
A flaw was found in Yelp. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in libsoup. Rated high severity (CVSS 7.0), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Ubuntu's configuration of gnome-control-center allowed Remote Desktop Sharing to be enabled by default. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant buffer overflow because SOCKS4_CONN_MSG_LEN is not sufficient for a trailing '\0' character. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
GNOME libsoup before 3.6.1 has an infinite loop, and memory consumption. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup_header_parse_param_list_strict. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
GNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\0' characters at the end of header names are ignored, i.e., a "Transfer-Encoding\0: chunked" header is. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An integer overflow vulnerability exists in the Compound Document Binary File format parser of v1.14.52 of the GNOME Project G Structured File Library (libgsf). Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An integer overflow vulnerability exists in the Compound Document Binary File format parser of the GNOME Project G Structured File Library (libgsf) version v1.14.52. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in the tracker-miners package. Rated high severity (CVSS 7.7), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.
A vulnerability was found in GNOME Shell. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
A flaw was found in GLib. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
CSV Injection vulnerability in GNOME time tracker version 3.0.2, allows local attackers to execute arbitrary code via crafted .tsv file when creating a new record. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A directory traversal problem in the URL decoder of librsvg before 2.56.3 could be used by local or remote attackers to disclose files (on the local filesystem outside of the expected area), as. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
In Epiphany (aka GNOME Web) through 43.0, untrusted web content can trick users into exfiltrating passwords, because autofill occurs in sandboxed contexts. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
GNOME Nautilus 42.2 allows a NULL pointer dereference and get_basename application crash via a pasted ZIP archive. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
GNOME OCRFeeder before 0.8.4 allows OS command injection via shell metacharacters in a PDF or image filename. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an error page. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used, as demonstrated by a a page title. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 because a server's suggested_filename is used as the pdf_name value in PDF.js. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an about: page, as demonstrated by ephy-about:overview when a user visits an XSS payload page often enough to place that. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In GNOME grilo though 0.3.13, grl-net-wc.c does not enable TLS certificate verification on the SoupSessionAsync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.
In GNOME evolution-rss through 0.3.96, network-soup.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libgda through 6.0.0, gda-web-provider.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libgfbgraph through 0.2.4, gfbgraph-photo.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A flaw was found in gdk-pixbuf in versions before 2.42.0. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A flaw was found in NetworkManager in versions before 1.30.0. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An issue was discovered in GUPnP before 1.0.7 and 1.1.x and 1.2.x before 1.2.5. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
autoar-extractor.c in GNOME gnome-autoar before 0.3.1, as used by GNOME Shell, Nautilus, and other software, allows Directory Traversal during extraction because it lacks a check of whether a file's. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An issue was discovered in GNOME GLib before 2.66.8. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
GNOME Evolution through 3.38.3 produces a "Valid signature" message for an unknown identifier on a previously trusted key because Evolution does not retrieve enough information from the GnuPG API. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in GDM in versions prior to 3.38.2.1. Rated medium severity (CVSS 6.4), this vulnerability is no authentication required.
GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entries. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed certificates) when the client system is not. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In GNOME Balsa before 2.6.0, a malicious server operator or man in the middle can trigger a NULL pointer dereference and client crash by sending a PREAUTH response to imap_mbox_connect in. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Infinite loop in json-glib's JSONPath slice evaluator lets an attacker hang any application that passes untrusted JSONPath strings to json_path_query(). A slice expression containing a negative step drives the evaluator into a non-terminating loop, spinning CPU and stalling the calling thread, so impact is limited to availability (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, 7.5) with no disclosure or modification. The prerequisite is narrow but real: the embedding application must evaluate attacker-controlled JSONPath; code that only runs developer-authored queries is not exposed. No public exploit code was identified at time of analysis and the issue is not in CISA KEV, but the underlying flaw is trivially reachable by a single crafted query string and has been triaged for remediation this week.
Local privilege escalation in the GNOME NetworkManager SSTP plugin allows a low-privileged local user who can create or modify an SSTP VPN connection profile to inject OS commands that are executed with root privileges by the pppd pty shell when the connection is activated. The vulnerability, tracked as CVE-2026-91838, is a command injection (CWE-78) with a CVSS score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The SSTP plugin is an optional, non-default component, and no public exploit code has been identified at the time of analysis.
Heap-based buffer overflow in the Dia diagram editor's WPG file importer allows arbitrary code execution or process crash when a user opens a crafted WPG file. The WPG color palette buffer is allocated for exactly 256 entries (768 bytes), but the COLORMAP record parser fails to validate that the supplied start index (i16) or total entry count (iNum16) stay within that bound, allowing a malicious file to drive fread() to write beyond the heap allocation. Affecting all Dia versions on the upstream master branch through at least 2026-08-21, no public exploit or patch version has been confirmed at time of analysis, though the description provides sufficient detail to construct proof-of-concept input.
Stack-based buffer overflow in GNOME Dia diagram editor (0.98.0 and earlier) permits stack exhaustion and potential return-address corruption when a victim opens a crafted .dia XML file containing a Bus object with an attacker-controlled bus_handles value and then moves a handle in the diagram. The root cause - an unbounded g_alloca() call driven by an unvalidated file attribute - is also present in objects/Misc/tree.c via Tree objects, widening the attack surface. No public exploit or CISA KEV listing exists at time of analysis, but the GitLab issue provides sufficient technical detail for proof-of-concept development.
HTTP request smuggling in libsoup (GNOME's HTTP client/server library) enables network-accessible attackers to inject hidden requests into backend streams by exploiting a parsing differential between libsoup's permissive chunked transfer encoding parser and strict RFC 9112-compliant frontend proxies. All libsoup versions are affected as tracked under CPE cpe:2.3:a:gnome:libsoup, with confirmed vendor impact across Red Hat Enterprise Linux 6.0 through 10.0. No public exploit code or active exploitation has been identified at time of analysis; SSVC classifies exploitation as none with non-automatable, partial technical impact.
Denial of service in GNOME GLib (versions before 2.88.1) arises when g_dbus_node_info_new_for_xml() parses malformed D-Bus introspection XML that nests a <node> element inside <method>, <signal>, <property>, or <arg>. This state-confusion bug triggers an unsigned integer underflow/overflow (CWE-191) and a subsequent out-of-bounds read, crashing any application or service that parses attacker-influenced introspection data. No public exploit identified at time of analysis, EPSS is low (0.34%), and CISA SSVC rates exploitation as none with only partial technical impact.
Arbitrary file disclosure in GLib's GDBus client affects the DBUS_COOKIE_SHA1 SASL authentication mechanism, where the client fails to validate the server-supplied cookie_context parameter. A malicious or compromised D-Bus server can send a cookie_context containing path traversal sequences, forcing the client to read attacker-chosen files and leak their contents by confirming guessed values against the returned authentication hash. No public exploit has been identified and it is not in CISA KEV; EPSS is low at 0.30% (22th percentile), consistent with the SSVC assessment of no known exploitation.
Denial of service (and a 1-byte out-of-bounds read) in GNOME GLib before 2.88.1 arises from an off-by-one error in g_key_file_get_locale_string_list() in gkeyfile.c when a parsed key file contains an empty value. Any application built on GLib that loads attacker-influenced .desktop/.ini-style key files can be crashed if the over-read crosses a page boundary, with a minor information-disclosure component from the single out-of-bounds byte. Publicly available exploit code exists (SSVC 'poc'), but it is not on CISA KEV and EPSS is low (0.24%, 15th percentile), indicating no evidence of widespread active exploitation.
Buffer over-read in GLib's giochannel line-reading code (g_io_channel_read_line_backend) affects the GNOME GLib library prior to version 2.88.1, where an application that configures a multi-byte custom line terminator triggers memcmp to read past the end of the internal GString buffer. Depending on memory layout, this leaks up to 7 bytes of adjacent heap memory (minor information disclosure) or crashes the process when the over-read crosses an unmapped page boundary (denial of service). There is no public exploit identified at time of analysis, EPSS is low (0.27%), and CISA SSVC rates exploitation as none.
Buffer over-read in GNOME GLib's g_regex_replace() lets remote attackers leak 1-5 adjacent bytes of process memory and crash applications when regex replacement is performed with the G_REGEX_RAW compile flag combined with case-change replacement escapes. The internal string_append helper applies UTF-8 aware routines to matched substrings even though G_REGEX_RAW treats the buffer as raw bytes, reading past the intended boundary. There is no public exploit identified at time of analysis and EPSS is low (0.26%, 18th percentile), but the flaw is broadly reachable because GLib underpins the GNOME stack and ships across Red Hat Enterprise Linux 6-10.
Out-of-bounds read of two bytes in GLib's g_date_time_get_ymd() (glib/gdatetime.c) lets attackers corrupt date output and trigger logic errors that may cause denial of service when an application processes an invalid GDateTime produced by g_date_time_add_full(). It affects the GNOME GLib core utility library shipped across Red Hat Enterprise Linux 6 through 10, with fixes in GLib 2.88.1 and 2.86.5. There is publicly available exploit code exists per SSVC (proof-of-concept), no confirmed active exploitation, and EPSS is low at 0.27% (19th percentile).
Out-of-bounds read in GNOME GLib's GVariant serialiser allows remote attackers to leak a single byte of adjacent memory and to crash applications that deserialise untrusted GVariant data. The flaw sits in gvs_tuple_is_normal() in glib/gvariant-serialiser.c, where an alignment-padding bounds check uses '>' instead of '>=', reading one byte past the buffer; when that byte falls across a page boundary the process faults, producing a denial of service. No public exploit identified at time of analysis, and EPSS is low (0.26%), but GLib's near-universal presence on Linux systems makes the exposure broad.
Use-after-free in libxml2's xmlParseInternalSubset function affects GNOME libxml2 versions 2.9.11 through 2.11.0 and can be triggered remotely by crafted XML containing abusive entity resolution, leading to denial of service of any application that parses untrusted XML with this library. Publicly available exploit code exists (CVSS 4.0 E:P) but the issue is not listed in CISA KEV, indicating proof-of-concept demonstration rather than confirmed active exploitation. The flaw was disclosed by Canonical and tracked in GNOME GitLab work item 1058 and Ubuntu Launchpad bug 2141260.
Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
backend/comics/comics-document.c (aka the comic book backend) in GNOME Evince before 3.24.1 allows remote attackers to execute arbitrary commands via a .cbt file that is a TAR archive containing a. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 76.7%.
Arbitrary file overwrite in GNOME Epiphany 47.0 and later allows an attacker-crafted WebExtension package to truncate and replace an existing user-writable file with attacker-controlled content and permission bits. The installer in src/webextension/ephy-web-extension-manager.c used libarchive with archive_read_support_format_all(), so a TAR archive renamed to *.xpi was accepted instead of only genuine ZIP files; a hard-link entry inside that TAR, combined with archive_write_disk options including ARCHIVE_EXTRACT_PERM, redirects the write onto an attacker-chosen existing file. The victim must deliberately install or open the malicious .xpi (UI:R, local delivery), severity is assessed at CVSS 5.5 with integrity-only impact, and no public exploit was identified at time of analysis; an upstream fix restricting the installer to ZIP format only has been merged but a tagged patched release is not confirmed in the available data.
Epiphany (GNOME Web) 45.0 through 51.x writes a stored PERMIT for both the webcam and microphone permission of a site origin whenever a user answers an unrelated Clipboard or Website Data Access prompt, so the site can call getUserMedia afterwards without a dedicated camera/microphone dialog and capture audio and video. The root cause is a malformed else-if in set_permission() of src/ephy-window.c whose condition is a non-zero enum constant, making the branch unconditional for the two permission types that the permissions manager does not persist. Exploitation is conditional: the victim must visit the attacker's page and click Allow on a clipboard or third-party storage prompt (CVSS 3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, 6.5, CWE-863), and no public exploit code or CISA KEV entry was identified at time of analysis.
Out-of-bounds read in Eye of GNOME (eog) when parsing a crafted PNG with malformed ICC color-profile metadata allows an attacker who convinces a user to open the image to crash the viewer and potentially expose limited memory contents. Affected deployments are GNOME desktop systems, including the Red Hat Enterprise Linux 6 through 9 package scope identified in CPE data; headless servers without eog installed are not exposed. Exploitation requires user interaction via a local vector, and no public exploit or CISA KEV confirmation was identified at time of analysis.
Heap-based buffer overflow in the OLE2 parser of GNOME libgsf (function ole_info_read_metabat in gsf/gsf-infile-msole.c) affects versions up to 1.14.60 and allows remote attackers to corrupt heap memory when a victim opens, previews, or otherwise processes a crafted OLE2 compound document with an application that relies on the library. The required user interaction (UI:P) prevents a fully unattended trigger, and the assessed impact is limited to low confidentiality, integrity and availability effects rather than confirmed code execution. No public exploit identified at time of analysis; an upstream fix commit has been published, and the issue fits a routine monthly patch cycle rather than an emergency response.
Rendering a crafted XPS document drives GNOME libgxps through 0.3.2 (the renderer used by consumers such as Evince) into a heap out-of-bounds read inside path_geometry_start_element(), allowing an attacker to crash the consuming application and leak adjacent heap bytes into rendered output. The trigger is a PolyBezierSegment or PolyQuadraticBezierSegment Points attribute whose point count is not a multiple of three (bezier) or two (quadratic), so exploitation is limited to a local, file-based attack that requires the victim to open or render the malicious document via user interaction (CVSS 4.0 AV:L/UI:P, PR:N) with no authentication or privilege bypass, no code execution, and only low confidentiality impact alongside high availability impact. An independent assessment scores the flaw 6.9 (medium) using CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H, and no public exploit identified at time of analysis despite a public technical writeup documenting the arity mismatch; the affected range is captured by the wildcard CPE cpe:2.3:a:gnome:libgxps:*:*:*:*:*:*:*:*.
Arbitrary local file exfiltration is possible in evolution-data-server (EDS) when a calendar event's ATTACH property contains a file:// URI: on saving the event, EDS reads the referenced local file, base64-encodes it, and uploads it back to the calendar server. Exploitation requires an authenticated attacker with write access to a shared or subscribed CalDAV calendar (CVSS PR:L) plus the victim interacting with the malicious event (UI:R), and is limited to files readable by the victim's own account - confidentiality is the only impacted property (CVSS 5.7, CWE-200). No public exploit code has been identified at time of analysis, and the flaw is rated a moderate-priority information-disclosure issue rather than an urgent one.
A heap-based buffer overflow in the PNG metadata reader of Eye of GNOME (eog) allows an attacker to potentially achieve arbitrary code execution or cause a denial of service (application crash) when a user opens a specially crafted PNG file. Exploitation requires user interaction and local access, but the vulnerability is unauthenticated (no privileges required) according to the CVSS vector PR:N. No public exploit code or confirmed active exploitation has been identified at time of analysis; the risk is constrained by the need for a user to open the malicious file on a system with eog installed.
Opening a crafted Gnumeric workbook can trigger a heap use-after-free (CWE-416) during XML parsing of a malformed SheetObjectComponent element, crashing the application and causing a denial of service. This affects GNOME Gnumeric across versions (CPE: cpe:2.3:a:gnome:gnumeric:*:*:*:*:*:*:*:*). The vulnerability requires local access and user interaction (CVSS:3.1/AV:L/AC:L/PR:N/UI:R), and no public exploit identified at time of analysis.
Stack-based denial of service in GIMP's Seattle FilmWorks (SFW) image plugin crashes the application when a crafted SFW file triggers an unbounded variable-length array allocation on the stack. The flaw affects all GIMP versions per the GNOME CPE string and is confirmed across Red Hat Enterprise Linux 6 through 9. An attacker who can deliver a malicious SFW file to a user can reliably crash the GIMP process with no code execution or data exposure; no public exploit has been identified at time of analysis.
libsoup leaks proxy credentials to destination servers via Proxy-Authorization header attachment after CONNECT tunnel establishment. Affects libsoup when used with HTTP proxies for HTTPS tunneling. No public exploit is known, and exploitation probability is low (EPSS 0.23%).
Heap buffer over-read in libsoup's multipart response parser allows remote, unauthenticated attackers to crash client applications or leak heap memory. The flaw occurs when processing crafted HTTP multipart responses from a malicious server. No active exploitation or public exploit code is known, and EPSS indicates low exploitation probability.
Heap out-of-bounds read in libsoup's multipart HTTP message parser allows remote attackers to crash affected applications or leak heap memory contents. An integer type mismatch between the calling code and soup_headers_parse() causes the length parameter to be incorrectly truncated, enabling a read beyond the allocated heap buffer boundary. No active exploitation has been identified (no CISA KEV listing, no public POC), and the CVSS score of 4.2 with AC:H/UI:R reflects meaningful real-world friction for successful exploitation.
Sandbox-escaping information disclosure in Yelp (the GNOME help viewer) lets a malicious Flatpak application read arbitrary user-readable files on the host. By using the OpenURI portal to open crafted help content that embeds an untrusted CSS stylesheet inside a structured SVG document, an attacker abuses an overly permissive Content Security Policy supplied by yelp-xsl to force Yelp to evaluate local XML inclusions and exfiltrate file contents via remote CSS resource requests, defeating Flatpak's intended isolation. The flaw was disclosed publicly (GNOME developer blog by Michael Catanzaro, May 2026) and tracked by Red Hat; no public exploit identified at time of analysis and it is not listed in CISA KEV.
libsoup versions prior to the patched release contain an integer underflow vulnerability in zero-length resource processing that enables unauthenticated remote attackers to read adjacent memory or trigger denial of service. The vulnerability stems from improper bounds checking during content handling, affecting any application using the vulnerable libsoup library for HTTP operations. No public exploit code has been identified, and the low EPSS score (0.04%, percentile 11%) indicates exploitation is unlikely in practice despite the moderate CVSS score of 6.5.
Libsoup's digest authentication mechanism fails to validate nonce reuse and enforce proper nonce-count incrementation, enabling attackers to replay captured authentication headers to bypass access controls. A remote attacker can exploit this to impersonate legitimate users and access protected resources without valid credentials. No patch is currently available.
libsoup's improper validation of HTTP Range headers enables remote attackers to read sensitive server memory when processing specially crafted requests against vulnerable SoupServer instances. The flaw affects GNOME-based systems using certain build configurations and requires no authentication or user interaction. No patch is currently available, and exploitation likelihood remains low at 0.1% EPSS.
HTTP request smuggling in libsoup allows remote attackers to exploit non-compliant chunk header parsing by injecting malformed requests with LF-only line endings instead of proper CRLF formatting. Without requiring authentication, an attacker can cause libsoup to interpret multiple HTTP requests from a single network message, potentially leading to information disclosure. No patch is currently available for this vulnerability.
libsoup's HTTP redirect handling fails to strip Proxy-Authorization headers when requests are forwarded to different hosts, allowing proxy credentials to be exposed to unintended third-party servers. Applications relying on libsoup for HTTP communication are vulnerable to disclosure of sensitive proxy authentication data. No patch is currently available.
HTTP header injection in libsoup through CRLF sequences in the Content-Disposition header allows unauthenticated remote attackers to inject arbitrary headers or split responses without user interaction. Public exploit code exists for this vulnerability. The flaw affects any application using vulnerable versions of libsoup to process untrusted HTTP headers, with no patch currently available.
libsoup's improper handling of URL-decoded input in HTTP proxy configurations allows remote attackers to inject CRLF sequences into the Host header, enabling injection of arbitrary HTTP headers or request bodies. Public exploit code exists for this vulnerability, which could allow attackers to manipulate downstream services through compromised proxy requests. Affected applications using libsoup with HTTP proxy functionality are at risk of integrity compromise, though no patch is currently available.
Integer overflow in GLib's GIO escape_byte_string() function enables heap buffer overflow and denial-of-service when processing malicious filesystem attribute values over the network. The vulnerability affects GLib across GNOME, Red Hat Enterprise Linux 7-10, and OpenShift 4.0+, requiring only unauthenticated network access and user interaction. EPSS score of 0.07% (percentile 22) indicates low exploitation probability despite CVSS 6.5, suggesting the attack requires specific file/attribute handling conditions; no public exploit or active exploitation (CISA KEV) confirmed at analysis time.
Heap corruption in GLib (GNOME's core C utility library) lets remote attackers trigger a buffer-underflow in the GVariant parser by supplying maliciously crafted serialized/text input, resulting in denial of service and potentially arbitrary code execution. Any application linking GLib that deserializes untrusted GVariant data is exposed, which spans broad swaths of the Linux desktop and system stack across Red Hat Enterprise Linux 7-10 and SUSE. There is no public exploit identified at time of analysis, and EPSS exploitation probability is low (0.26%, 49th percentile) despite the 9.8 CVSS, indicating the headline severity is not yet matched by observed exploitation interest.
Heap-based buffer overflow in GLib's g_escape_uri_string() function allows local attackers to achieve high-integrity and high-availability impacts through integer overflow in escaped string length calculation. The vulnerability affects Red Hat Enterprise Linux 9.0 and 10.0 across multiple architectures (x86_64, ARM64, IBM Z, PowerPC). Vendor patches are available via multiple RHSA advisories. Publicly available exploit code exists, but EPSS score remains extremely low (0.01%, 1st percentile), suggesting minimal real-world exploitation activity despite the availability of technical details.
Denial of service in GNOME GLib on Windows platforms occurs when an application uses GLib's process-spawning functions with excessively long command lines, causing the spawn operation to fail or crash the host process and disrupt availability. The flaw affects the GLib library's Windows command-line handling and impacts any Windows application that links GLib and passes attacker-influenced long argument strings to a child process. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV; despite Red Hat tags mentioning RCE/Code Injection, the CVSS impact metrics confirm availability-only impact (C:N/I:N/A:H).
A flaw was found in the GIF parser of GdkPixbuf’s LZW decoder. When an invalid symbol is encountered during decompression, the decoder sets the reported output size to the full buffer length rather than the actual number of written bytes. This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.
A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.
In Ubuntu, gnome-control-center did not properly reflect SSH remote login status when the system was configured to use systemd socket activation for openssh-server. Rated medium severity (CVSS 4.9), this vulnerability is no authentication required. Public exploit code available.
A flaw was found in Yelp. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in libsoup. Rated high severity (CVSS 7.0), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Ubuntu's configuration of gnome-control-center allowed Remote Desktop Sharing to be enabled by default. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant buffer overflow because SOCKS4_CONN_MSG_LEN is not sufficient for a trailing '\0' character. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
GNOME libsoup before 3.6.1 has an infinite loop, and memory consumption. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup_header_parse_param_list_strict. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
GNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\0' characters at the end of header names are ignored, i.e., a "Transfer-Encoding\0: chunked" header is. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An integer overflow vulnerability exists in the Compound Document Binary File format parser of v1.14.52 of the GNOME Project G Structured File Library (libgsf). Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An integer overflow vulnerability exists in the Compound Document Binary File format parser of the GNOME Project G Structured File Library (libgsf) version v1.14.52. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in the tracker-miners package. Rated high severity (CVSS 7.7), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.
A vulnerability was found in GNOME Shell. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
A flaw was found in GLib. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A flaw was found in GLib. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
CSV Injection vulnerability in GNOME time tracker version 3.0.2, allows local attackers to execute arbitrary code via crafted .tsv file when creating a new record. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A directory traversal problem in the URL decoder of librsvg before 2.56.3 could be used by local or remote attackers to disclose files (on the local filesystem outside of the expected area), as. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
In Epiphany (aka GNOME Web) through 43.0, untrusted web content can trick users into exfiltrating passwords, because autofill occurs in sandboxed contexts. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
GNOME Nautilus 42.2 allows a NULL pointer dereference and get_basename application crash via a pasted ZIP archive. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
GNOME OCRFeeder before 0.8.4 allows OS command injection via shell metacharacters in a PDF or image filename. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an error page. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used, as demonstrated by a a page title. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 because a server's suggested_filename is used as the pdf_name value in PDF.js. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an about: page, as demonstrated by ephy-about:overview when a user visits an XSS payload page often enough to place that. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In GNOME grilo though 0.3.13, grl-net-wc.c does not enable TLS certificate verification on the SoupSessionAsync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.
In GNOME evolution-rss through 0.3.96, network-soup.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libgda through 6.0.0, gda-web-provider.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In GNOME libgfbgraph through 0.2.4, gfbgraph-photo.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A flaw was found in gdk-pixbuf in versions before 2.42.0. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A flaw was found in NetworkManager in versions before 1.30.0. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An issue was discovered in GUPnP before 1.0.7 and 1.1.x and 1.2.x before 1.2.5. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
autoar-extractor.c in GNOME gnome-autoar before 0.3.1, as used by GNOME Shell, Nautilus, and other software, allows Directory Traversal during extraction because it lacks a check of whether a file's. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An issue was discovered in GNOME GLib before 2.66.8. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
GNOME Evolution through 3.38.3 produces a "Valid signature" message for an unknown identifier on a previously trusted key because Evolution does not retrieve enough information from the GnuPG API. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in GDM in versions prior to 3.38.2.1. Rated medium severity (CVSS 6.4), this vulnerability is no authentication required.
GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entries. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed certificates) when the client system is not. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In GNOME Balsa before 2.6.0, a malicious server operator or man in the middle can trigger a NULL pointer dereference and client crash by sending a PREAUTH response to imap_mbox_connect in. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.