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...

Important: Red Hat Security Advisory: flatpak-builder security update

An update for flatpak-builder is now available for Red Hat Enterprise Linux 9. 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 each vulnerabilit...

Important: Red Hat Security Advisory: flatpak-builder security update

An update for flatpak-builder is now available for Red Hat Enterprise Linux 10. 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 each vulnerabili...

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...

Amazon Linux 2023 : flatpak-builder, flatpak-builder-tests (ALAS2023-2026-3152)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-3152 advisory. When use-git-am: true is enabled for a patch source, flatpak-builder invokes git am without disabling git hooks. A malicious source can include a post-applypatch hook, which will be executed...

flatpak-builder security update

1.2.3-2 - Disable git hooks when applying patches CVE-2026-86320 Resolves: RHEL-262183...

ALSA-2026:80495 Important: flatpak-builder security update

Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in patch source extraction use-git-am CVE-2026-86320 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

Important: flatpak-builder

Issue Overview: When use-git-am: true is enabled for a patch source, flatpak-builder invokes git am without disabling git hooks. A malicious source can include a post-applypatch hook, which will be executed automatically when a patch with use-git-am: true is applied. Since git itself runs...

Important: flatpak-builder security update

Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in patch source extraction use-git-am CVE-2026-86320 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

Important: flatpak security update

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Security Fixes: flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data extraction CVE-2026-96275...

Important: flatpak-builder security update

Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in patch source extraction use-git-am CVE-2026-86320 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

ALSA-2026:80687 Important: flatpak security update

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Security Fixes: flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data extraction CVE-2026-96275...

RHEL 10 : flatpak-builder (RHSA-2026:80495)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:80495 advisory. Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in pat...

RHEL 9 : flatpak-builder (RHSA-2026:80496)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:80496 advisory. Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in patc...

RHEL 10 : flatpak (RHSA-2026:80498)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:80498 advisory. Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Security Fixes: flatpak: Flatpak:...

Important: flatpak security update

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Security Fixes: flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data extraction CVE-2026-96275...

ALSA-2026:80497 Important: flatpak security update

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Security Fixes: flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data extraction CVE-2026-96275...

AlmaLinux 8 : flatpak (ALSA-2026:80687)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:80687 advisory. flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data...

ALSA-2026:80496 Important: flatpak-builder security update

Flatpak-builder is a tool for building flatpaks from sources. Security Fixes: flatpak-builder: Host code execution via git am hook execution in patch source extraction use-git-am CVE-2026-86320 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

AlmaLinux 10 : flatpak (ALSA-2026:80498)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:80498 advisory. flatpak: Flatpak: Arbitrary code execution via missing symlink protection CVE-2026-90616 flatpak: flatpak: Arbitrary write access as root via extra-data...