CVE-2026-76925 Flatpak: flatpak: toctou race condition allows symlink redirection

A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy function. An attacker c...

CVE-2026-76925

CVE-2026-76925 is a TOCTOU race condition in Flatpak's org.freedesktop.Flatpak.SystemHelper component. The root cause is that a privileged chmod operation executes before OSTree repository validation within the Deploy() function, creating a timing window an attacker can exploit to redirect symlin...

CVE-2026-76925: Time-of-check Time-of-use (TOCTOU) Race Condition

A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy function. An attacker c...

PT-2026-86261

A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy function. An attacker c...

Linux Distros Unpatched Vulnerability : CVE-2026-76925

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerabili...

pipewire: PipeWire: Sandbox escape and arbitrary code execution via malicious library loading

A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to escape sandboxed applications, such as Flatpak, by exploiting PipeWire's PulseAudio compatibility layer. An attacker with minimal permissions within a sandboxed environment can load a malicious library,...

Updated flatpak package fixes security vulnerabilities

Updated flatpak package fixes security vulnerabilities. Please see the links for additional information...

MGASA-2026-0342 Updated flatpak package fixes security vulnerabilities

Updated flatpak package fixes security vulnerabilities. Please see the links for additional information...

dbus-broker: dbus-broker: session bus denial of service via EMFILE during peer setup

A flaw was found in dbus-broker. When the process file-descriptor limit is reached, EMFILE/ENFILE errors during peer setup notably SOPEERPIDFD are handled as fatal failures, causing the broker to exit. A local attacker who can open many connections to the user session bus can trigger this and den...

TencentOS Server 3: yelp (TSSA-2026:0898)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0898 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

Astra Linux – Vulnerability in Flatpak

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Starting from version 0.9.4 and before version 1.10.2, Flatpak has a vulnerability in its “file forwarding” feature, which can be exploited by attackers to gain access to files that would normally...

Astra Linux – Vulnerability in Flatpak

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4 contain a vulnerability similar to CVE-2017-5226, but it involves the use of the TIOCLINUX ioctl command instead of TIOCSTI. If a Flatpak...

Astra Linux – Vulnerability in Flatpak

Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.12.3 and 1.10.6, Flatpak did not properly validate whether the permissions displayed to the user during installation match the actual permissions granted to the app at runtime, especially when there was a nu...

Astra Linux – Vulnerability in Flatpak

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak application with elevated permissions, they can hide those permissions from users of the flatpak1...

yelp: yelp-xsl: Overly Permissive Content Security Policy in Yelp Allows Host File Disclosure from Flatpak Applications

A flaw was found in Yelp due to an overly permissive Content Security Policy CSP implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document,...

Important: Red Hat Security Advisory: yelp security update

An update for yelp is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 7 : yelp (RHSA-2026:57417)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:57417 advisory. Yelp is the help browser for the GNOME desktop. It is designed to help you browse all the documentation on your system in one central tool, includin...

pipewire: PipeWire: Sandbox escape and arbitrary code execution via malicious library loading

A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to escape sandboxed applications, such as Flatpak, by exploiting PipeWire's PulseAudio compatibility layer. An attacker with minimal permissions within a sandboxed environment can load a malicious library,...

pipewire: PipeWire: Sandbox escape and arbitrary code execution via malicious library loading

A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to escape sandboxed applications, such as Flatpak, by exploiting PipeWire's PulseAudio compatibility layer. An attacker with minimal permissions within a sandboxed environment can load a malicious library,...

GLSA-202608-06 : Flatpak: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202608-06 Flatpak: Multiple Vulnerabilities Multiple vulnerabilities have been discovered in Flatpak. Please review the CVE identifiers referenced below for details. Tenable has extracted the preceding description block directly...