CVE-2026-96281 Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes

On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to an older version by removing the app's remote ref via the unprivileged system-helper RemoveLocalRef method, causing the anti-downgrade check to fail to find a reference date. A malicious...

CVE-2026-96281 Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes

On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to an older version by removing the app's remote ref via the unprivileged system-helper RemoveLocalRef method, causing the anti-downgrade check to fail to find a reference date. A malicious...

Lexmark security vulnerabilities

Lexmark is a series of printers from Lexmark USA. A security vulnerability exists in Lexmark that stems from a newly added feature that prevents firmware downgrades from being bypassed...