Monthly
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.
Local information disclosure in IBM Db2 Mirror for i 7.4, 7.5, and 7.6 stems from a predictable Unix domain socket path placed in a world-writable directory, enabling a TOCTOU race condition (CWE-367). A local, low-privileged attacker can pre-create or replace the socket at the predictable path before the Db2 Mirror service claims it, intercepting communications that flow through that socket and obtaining sensitive information. No active exploitation has been confirmed, and no public exploit code has been identified at time of analysis.
Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.
In-sandbox arbitrary code execution in Google Chrome's V8 JavaScript engine (all versions prior to 152.0.7977.82) is achievable by a remote unauthenticated attacker who tricks a user into visiting a specially crafted HTML page. The underlying flaw is a CWE-367 Time-of-Check Time-of-Use (TOCTOU) race condition within V8, allowing the attacker to win a memory-access race and redirect execution flow inside the Chrome renderer sandbox. No public exploit code has been identified and CISA SSVC rates exploitation as 'none' at time of analysis, though the technical impact is rated 'total' within the sandbox boundary.
Local privilege escalation in util-linux's SUID mount(8) binary exposes all major Red Hat Enterprise Linux versions (7-10), Red Hat Hardened Images, and OpenShift Container Platform 4 to root-level file ownership and permission manipulation by low-privileged local users. The flaw stems from a time-of-check to time-of-use (TOCTOU) race: mount(8) reads the bind-mount source from fstab but does not pin the resolved inode before issuing the privileged syscall, allowing an attacker with write access to the source path or a writable ancestor to substitute an arbitrary host directory. When fstab entries additionally specify X-mount.owner, X-mount.group, or X-mount.mode, root subsequently applies chown or chmod to the attacker-redirected path, completing the privilege escalation. No public exploit code or CISA KEV listing is identified at time of analysis.
Remote code execution via a time-of-check time-of-use race condition in GitHub Enterprise Server affects all versions prior to 3.22. An authenticated user holding repository write access can trigger the vulnerability by issuing precisely timed concurrent upload requests, exploiting the window between a security check and the file operation it guards. No public exploit code or CISA KEV listing has been identified; the issue was responsibly disclosed through GitHub's Bug Bounty program and patched across five active release branches.
Unauthorized code execution in Sauter EY-modulo building-automation controllers (modu680-AS, modu660-AS, modu612-LC) and ecoS ecos504/ecos505 field controllers stems from a Time-of-Check Time-of-Use race in a network-facing service, which an unauthenticated remote attacker can win to bypass intended security controls. CERT@VDE (advisory VDE-2026-093) coordinated disclosure and CVSS 4.0 rates it 9.3 (Critical) with full confidentiality, integrity and availability loss. There is no public exploit identified at time of analysis and the CVE is not on CISA KEV.
Unreviewed code execution in Google Cloud Build (GitHub-triggered builds prior to the 2026-06-24 fix) allowed a remote attacker to bypass the GitHub Trigger Comment Control approval gate via webhook suppression and run attacker-supplied code inside the build environment. The Comment Control feature is meant to require a maintainer's approval comment before a pull request from an outside contributor triggers a build; the flaw let that check be evaded so unapproved code executed. No public exploit identified at time of analysis, and Google states the issue was patched server-side with no customer action required.
Race condition in filebrowser's TUS resumable upload handler allows authenticated low-privileged users to bypass declared Upload-Length limits by issuing concurrent PATCH requests to the same offset. Affected versions start at 2.24.0. A successful exploit causes files to be written beyond their declared sizes, and may trigger upload completion hooks for oversized payloads - potentially abusing downstream processing logic. No public exploit code or CISA KEV listing exists at time of analysis.
DNS rebinding SSRF in Weblate prior to version 2026.8 allows an authenticated user with VCS component URL management privileges to circumvent VCS_RESTRICT_PRIVATE protections and reach internal network services. The attack exploits the time gap between Weblate's initial hostname validation and the VCS client's subsequent independent DNS lookup - an attacker-controlled domain passes validation pointing to a public IP, then switches to an internal address before the actual VCS connection is made. Triggering a clone, fetch, push, or similar operation then causes Weblate to connect to internal VCS-compatible services and potentially expose their contents. No public exploit has been identified at time of analysis, though the DNS rebinding technique is well-understood and toolkits for it exist.
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.
Local information disclosure in IBM Db2 Mirror for i 7.4, 7.5, and 7.6 stems from a predictable Unix domain socket path placed in a world-writable directory, enabling a TOCTOU race condition (CWE-367). A local, low-privileged attacker can pre-create or replace the socket at the predictable path before the Db2 Mirror service claims it, intercepting communications that flow through that socket and obtaining sensitive information. No active exploitation has been confirmed, and no public exploit code has been identified at time of analysis.
Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.
In-sandbox arbitrary code execution in Google Chrome's V8 JavaScript engine (all versions prior to 152.0.7977.82) is achievable by a remote unauthenticated attacker who tricks a user into visiting a specially crafted HTML page. The underlying flaw is a CWE-367 Time-of-Check Time-of-Use (TOCTOU) race condition within V8, allowing the attacker to win a memory-access race and redirect execution flow inside the Chrome renderer sandbox. No public exploit code has been identified and CISA SSVC rates exploitation as 'none' at time of analysis, though the technical impact is rated 'total' within the sandbox boundary.
Local privilege escalation in util-linux's SUID mount(8) binary exposes all major Red Hat Enterprise Linux versions (7-10), Red Hat Hardened Images, and OpenShift Container Platform 4 to root-level file ownership and permission manipulation by low-privileged local users. The flaw stems from a time-of-check to time-of-use (TOCTOU) race: mount(8) reads the bind-mount source from fstab but does not pin the resolved inode before issuing the privileged syscall, allowing an attacker with write access to the source path or a writable ancestor to substitute an arbitrary host directory. When fstab entries additionally specify X-mount.owner, X-mount.group, or X-mount.mode, root subsequently applies chown or chmod to the attacker-redirected path, completing the privilege escalation. No public exploit code or CISA KEV listing is identified at time of analysis.
Remote code execution via a time-of-check time-of-use race condition in GitHub Enterprise Server affects all versions prior to 3.22. An authenticated user holding repository write access can trigger the vulnerability by issuing precisely timed concurrent upload requests, exploiting the window between a security check and the file operation it guards. No public exploit code or CISA KEV listing has been identified; the issue was responsibly disclosed through GitHub's Bug Bounty program and patched across five active release branches.
Unauthorized code execution in Sauter EY-modulo building-automation controllers (modu680-AS, modu660-AS, modu612-LC) and ecoS ecos504/ecos505 field controllers stems from a Time-of-Check Time-of-Use race in a network-facing service, which an unauthenticated remote attacker can win to bypass intended security controls. CERT@VDE (advisory VDE-2026-093) coordinated disclosure and CVSS 4.0 rates it 9.3 (Critical) with full confidentiality, integrity and availability loss. There is no public exploit identified at time of analysis and the CVE is not on CISA KEV.
Unreviewed code execution in Google Cloud Build (GitHub-triggered builds prior to the 2026-06-24 fix) allowed a remote attacker to bypass the GitHub Trigger Comment Control approval gate via webhook suppression and run attacker-supplied code inside the build environment. The Comment Control feature is meant to require a maintainer's approval comment before a pull request from an outside contributor triggers a build; the flaw let that check be evaded so unapproved code executed. No public exploit identified at time of analysis, and Google states the issue was patched server-side with no customer action required.
Race condition in filebrowser's TUS resumable upload handler allows authenticated low-privileged users to bypass declared Upload-Length limits by issuing concurrent PATCH requests to the same offset. Affected versions start at 2.24.0. A successful exploit causes files to be written beyond their declared sizes, and may trigger upload completion hooks for oversized payloads - potentially abusing downstream processing logic. No public exploit code or CISA KEV listing exists at time of analysis.
DNS rebinding SSRF in Weblate prior to version 2026.8 allows an authenticated user with VCS component URL management privileges to circumvent VCS_RESTRICT_PRIVATE protections and reach internal network services. The attack exploits the time gap between Weblate's initial hostname validation and the VCS client's subsequent independent DNS lookup - an attacker-controlled domain passes validation pointing to a public IP, then switches to an internal address before the actual VCS connection is made. Triggering a clone, fetch, push, or similar operation then causes Weblate to connect to internal VCS-compatible services and potentially expose their contents. No public exploit has been identified at time of analysis, though the DNS rebinding technique is well-understood and toolkits for it exist.