CVE-2026-86320 Flatpak-builder: host code execution via `git am` hook execution in patch source extraction (`use-git-am`)

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

CVE-2026-86320

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

CVE-2026-86320 Flatpak-builder: host code execution via `git am` hook execution in patch source extraction (`use-git-am`)

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

CVE-2026-86320

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

CVE-2026-86320

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

EUVD-2026-81387

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

CVE-2026-86320

CVE-2026-86320 affects flatpak-builder , a build tool for creating Flatpak applications. When applying patch sources with use-git-am: true, Git hooks are not disabled, allowing an attacker who supplies a malicious source containing a post-applypatch hook to execute arbitrary code on the host duri...

CVE-2026-86320

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

PT-2026-94191

Name of the Vulnerable Software and Affected Versions flatpak-builder affected versions not specified Description A flaw exists where Git hooks are not disabled when applying patch sources with use-git-am set to true. An attacker providing a malicious source containing a Git post-applypatch hook...

CVE-2026-86320: Improper Control of Generation of Code

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary...

SUSE CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

OESA-2026-3852 flatpak security update

flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information. Security Fixes: A vulnerability, which was classified as very critical, has been found in Flatpak up to...

Astra Linux – Vulnerability in Flatpak

Flatpak is a Linux application sandboxing and distribution framework. Prior to version 1.16.4, the caching mechanism for ld.so removed outdated cache files without properly checking whether the app’s control over the path to the outdated cache was valid within the cache directory. This allowed...

Astra Linux – Vulnerability in Flatpak

Flatpak is a Linux application sandboxing and distribution framework. Prior to version 1.16.4, the Flatpak portal allowed paths to be specified in the “sandbox-expose” options. These paths could be app-controlled symbolic links that pointed to arbitrary locations. When a Flatpak application was...

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...

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...

CVE-2026-90616

A flaw was found in Flatpak. A malicious sandboxed application can exploit missing symlink protection during the creation and bind-mounting of app data directories. By manipulating attacker-controlled path components, a malicious symlink can redirect these directories to arbitrary locations on th...

Linux Distros Unpatched Vulnerability : CVE-2026-86320

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-builder where Git hooks are not disabled when applying patch sources with use- git-am: true. An attacker who can provide a malicious...