CVE-2026-86320 | BDVDB-2026-375799 Detail
Red HatRed Hat Enterprise Linux 10
Description#
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 code execution with the privileges of the user running flatpak-builder.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References#
- https://access.redhat.com/errata/RHSA-2026:80495
- https://access.redhat.com/errata/RHSA-2026:80496
- https://access.redhat.com/errata/RHSA-2026:80973
- https://access.redhat.com/errata/RHSA-2026:84832
- https://access.redhat.com/errata/RHSA-2026:84833
- https://access.redhat.com/errata/RHSA-2026:84834
- https://access.redhat.com/errata/RHSA-2026:84842
- https://access.redhat.com/errata/RHSA-2026:86714
- https://access.redhat.com/errata/RHSA-2026:90896
- https://access.redhat.com/errata/RHSA-2026:92220
- https://access.redhat.com/security/cve/CVE-2026-86320
- https://bugzilla.redhat.com/show_bug.cgi?id=2471023
- https://github.com/flatpak/flatpak-builder/security/advisories/GHSA-j5p8-jgjc-f3xv
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.