{"action":"Upgrade firefox-esr to 153.4.0esr-1~deb13u1 or later.","affected":[{"fixed":"153.4.0esr-1~deb13u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["153.4.0esr-1~deb13u1"],"id":"tcs_01M5NPHZX052MRX3BYBAZTCSPH","modified_at":"2026-10-14T09:47:38.259228918Z","published_at":"2026-09-29T13:17:48.047Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-100828","https://security-tracker.debian.org/tracker/CVE-2026-100828"],"severity":{"label":"critical","score":9.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-100828#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-100828"}],"summary":"Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157."}