Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:1.16.0-9.el10_2.4 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 0:1.12.9-7.el8_10 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:1.12.9-4.el9_8.4 before * |
| Red Hat / Red Hat Enterprise Linux 7 | affected |
CWE
CWE-22
References
- https://access.redhat.com/errata/RHSA-2026:80497
- https://access.redhat.com/errata/RHSA-2026:80498
- https://access.redhat.com/errata/RHSA-2026:80687
- https://access.redhat.com/security/cve/CVE-2026-96275
- https://bugzilla.redhat.com/show_bug.cgi?id=2539416
- https://github.com/flatpak/flatpak/security/advisories/GHSA-fqx6-vh4p-42cg
ADP enrichment
No English description supplied.
No references supplied.