CVE-2026-96275
Flatpak: flatpak: arbitrary write access as root via extra-data extraction
HIGH 8.8
En bref
- Source
- NVD
- EPSS
- EPSS 0.48 % · centile 42 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Awaiting Analysis
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.
Faiblesses (CWE)
- CWE-22 — Traversée de répertoire
Références
- 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/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
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-85342
- GCVE · GCVE-0-2026-96275
Produits affectés
| Produit | Versions |
|---|---|
| Red Hat · Red Hat Enterprise Linux 10 | unaffected 0:1.16.0-9.el10_2.4 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:1.12.9-7.el8_10 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:1.12.9-4.el9_8.4 < * |
| Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | unaffected 0:1.12.9-3.el9_4.5 < * |
| Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:1.12.9-4.el9_6.5 < * |
| Red Hat · Red Hat Enterprise Linux 7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |