CVE-2026-96275

Publié : 23 septembre 2026

Modifié : 23 septembre 2026

Score CVSS

8.8

HIGH

Description détaillée

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.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Références et Patchs

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

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