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...

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 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: 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...

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...

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...

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...

[SECURITY] Fedora 44 Update: flatpak-builder-1.4.8-1.fc44

Flatpak-builder is a tool for building flatpaks from sources. See https://flatpak.org/ for more information...

Fedora 44 : flatpak-builder (2026-5e62b78a0c)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-5e62b78a0c advisory. This update includes a fix for CVE-2026-39977. See also: the upstream advisory Tenable has extracted the preceding description block directly from the Fedora...

[SECURITY] Fedora 42 Update: flatpak-builder-1.4.8-1.fc42

Flatpak-builder is a tool for building flatpaks from sources. See https://flatpak.org/ for more information...

[SECURITY] Fedora 43 Update: flatpak-builder-1.4.8-1.fc43

Flatpak-builder is a tool for building flatpaks from sources. See https://flatpak.org/ for more information...

Fedora 43 : flatpak-builder (2026-25ff246b4f)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-25ff246b4f advisory. This update includes a fix for CVE-2026-39977. See also: the upstream advisory Tenable has extracted the preceding description block directly from the Fedora...

Fedora 42 : flatpak-builder (2026-631b9d535c)

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-631b9d535c advisory. This update includes a fix for CVE-2026-39977. See also: the upstream advisory Tenable has extracted the preceding description block directly from the Fedora...

OPENSUSE-SU-2026:10590-1 flatpak-builder-1.4.8-1.1 on GA media

These are all security issues fixed in the flatpak-builder-1.4.8-1.1 package on the GA media of openSUSE Tumbleweed...

Linux Distros Unpatched Vulnerability : CVE-2026-39977

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined...

CVE-2026-39977

A flaw was found in flatpak-builder. A specially crafted manifest or source can bypass path restrictions by using symbolic links within the license-files field, allowing the builder to follow paths outside the intended source directory, reading arbitrary files from the host system and including...

SUSE CVE-2026-39977

flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined licence files relative to the source directory of the module. The paths from that array are resolved using gfileresolverelativepath and...

DEBIAN-CVE-2026-39977

flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined licence files relative to the source directory of the module. The paths from that array are resolved using gfileresolverelativepath and...

CVE-2026-39977

flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined licence files relative to the source directory of the module. The paths from that array are resolved using gfileresolverelativepath and...