high8.8
CVE-2026-96275
A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data().
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | All versions Version patch: 0:1.16.0-9.el10_2.4 |
| Red Hat | Red Hat Enterprise Linux 8 | All versions Version patch: 0:1.12.9-7.el8_10 |
| Red Hat | Red Hat Enterprise Linux 9 | All versions Version patch: 0:1.12.9-4.el9_8.4 |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions | All versions Version patch: 0:1.12.7-5.el9_2.5 |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions | All versions Version patch: 0:1.12.9-3.el9_4.5 |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | All versions Version patch: 0:1.12.9-4.el9_6.5 |
| Red Hat | Red Hat Enterprise Linux 7 | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- 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/errata/RHSA-2026:89733
- https://access.redhat.com/errata/RHSA-2026:90364
- https://access.redhat.com/errata/RHSA-2026:92369
- 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