High severity8.8NVD Advisory· Published Sep 23, 2026· Updated Nov 2, 2026
CVE-2026-96275
CVE-2026-96275
Description
A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: files/extra is resolved via path operations that follow symlinks, and blob names from xa.extra-data-sources are not sanitized against .. traversal.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- osv-coords5 versionspkg:rpm/almalinux/flatpakpkg:rpm/almalinux/flatpak-develpkg:rpm/almalinux/flatpak-libspkg:rpm/almalinux/flatpak-selinuxpkg:rpm/almalinux/flatpak-session-helper
< 1.12.9-4.el9_8.4+ 4 more
- (no CPE)range: < 1.12.9-4.el9_8.4
- (no CPE)range: < 1.12.9-4.el9_8.4
- (no CPE)range: < 1.12.9-4.el9_8.4
- (no CPE)range: < 1.12.9-4.el9_8.4
- (no CPE)range: < 1.12.9-4.el9_8.4
Patches
Vulnerability mechanics
References
10- access.redhat.com/errata/RHSA-2026:80497nvd
- access.redhat.com/errata/RHSA-2026:80498nvd
- access.redhat.com/errata/RHSA-2026:80687nvd
- access.redhat.com/errata/RHSA-2026:89733nvd
- access.redhat.com/errata/RHSA-2026:90364nvd
- access.redhat.com/errata/RHSA-2026:92221nvd
- access.redhat.com/errata/RHSA-2026:92369nvd
- access.redhat.com/security/cve/CVE-2026-96275nvd
- bugzilla.redhat.com/show_bug.cginvd
- github.com/flatpak/flatpak/security/advisories/GHSA-fqx6-vh4p-42cgnvd
News mentions
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