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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat Enterprise Linux 10
Default version status: affected
0:1.4.4-1.el10_2.1 to < *unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
Default version status: affected
0:1.4.4-1.el10_0.1 to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
0:1.2.3-2.el8_10 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Default version status: affected
0:1.0.9-4.el8_4 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Default version status: affected
0:1.0.9-4.el8_4 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Default version status: affected
0:1.0.9-4.el8_6 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Default version status: affected
0:1.0.9-4.el8_6 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Default version status: affected
0:1.0.14-3.el8_8 to < *unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Default version status: affected
0:1.0.14-3.el8_8 to < *unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
0:1.2.3-1.el9_8.1 to < *unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Default version status: affected
0:1.2.2-2.el9_2 to < *unaffected
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
Default version status: affected
0:1.2.3-2.el9_4 to < *unaffected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
Default version status: affected
0:1.2.3-1.el9_6.1 to < *unaffected
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 ↗