flatpak: Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's...
CVE-2026-97025 is fixed in flatpak on 1 platform, first by DEBIAN-CVE-2026-97025, released September 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources (e.g. as used by Fedora) are affected; libostree-based sources such as Flathub are not.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| flatpak · Debian 13.5 (trixie) | 1.16.6-1~deb13u3 | DEBIAN-CVE-2026-97025 | Sep 29, 2026 |
| flatpak · Debian 14 | 1.18.4-1 | DEBIAN-CVE-2026-97025 | Sep 29, 2026 |
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