A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow.
Last checked: 2026-09-29 22:54 UTC
No exploitation evidence · CISA Coordinator (Assessed 2026-09-28 13:54 UTC)
Fix evidence last checked: 2026-09-28 20:14 UTC
Debian 12 (Bookworm)
Debian Security Tracker · Observed 2026-09-23
Debian 13 (Trixie)
Debian Security Tracker · Observed 2026-09-23