{"action":"Upgrade firefox-esr to 140.11.0esr-1~deb13u1 or later.","affected":[{"fixed":"140.11.0esr-1~deb13u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["140.11.0esr-1~deb13u1"],"id":"tcs_01M5NVXJXD0N2N11ACDA1DE5VG","modified_at":"2026-10-27T09:47:40.084537200Z","published_at":"2026-05-12T15:16:20.100Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-8401","https://security-tracker.debian.org/tracker/CVE-2026-8401"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-8401#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-8401"}],"summary":"Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11."}