rootpwn

critical · CVSS v3 9.1

CVE-2026-97025

Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cac…

Description

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.

Scores

Severity
critical
CVSS v2
1.7
CVSS v3
9.1
CVSS v4
—
EPSS
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