{"action":"Upgrade firejail to 0.9.64.4-1 or later.","affected":[{"fixed":"0.9.64.4-1","introduced":"0"}],"component":"firejail","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.9.64.4-1"],"id":"tcs_01M5NFGCXQ4JDWQ7GW6Q98SPWG","modified_at":"2026-10-30T06:00:04.964427769Z","published_at":"2021-02-08T20:15:13.090Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-26910","https://security-tracker.debian.org/tracker/CVE-2021-26910"],"severity":{"label":"high","score":7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-26910","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-26910"}],"summary":"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."}