https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-06T11:31:34.407045+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2021-26910 CVE-2021-26910 2026-10-06T11:31:34.412274+00:00

Firejail before 0.9.64.4 allows attackers to bypass intended access restrictions because there is a TOCTOU race condition between a stat operation and an OverlayFS mount operation.

 https://vulnerability.circl.lu/vuln/usn-5141-1 USN-5141-1 — firejail vulnerability 2026-10-06T11:31:34.412352+00:00

Affected: Ubuntu:20.04:LTS: firejail

Roman Fiedler discovered that a race condition existed in Firejail when using OverlayFS to prevent writes to the underlying file system. A local attacker could use this to gain administrative privileges. Note: this update disables support for OverlayFS in Firejail.