EUVD-2026-71774

A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy function. An attacker c...

CVE-2026-76925

CVE-2026-76925 is a TOCTOU race condition in Flatpak's org.freedesktop.Flatpak.SystemHelper component. The root cause is that a privileged chmod operation executes before OSTree repository validation within the Deploy() function, creating a timing window an attacker can exploit to redirect symlin...

PT-2026-86261

A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy function. An attacker c...