{"action":"Upgrade firefox-esr to 153.4.0esr-1~deb12u1 or later.","affected":[{"fixed":"153.4.0esr-1~deb12u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["153.4.0esr-1~deb12u1"],"id":"tcs_01M5NPHJY1PT76XVBHMF1TH8PB","modified_at":"2026-10-23T17:47:26.437340377Z","published_at":"2026-09-29T13:17:44.760Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-100797","https://security-tracker.debian.org/tracker/CVE-2026-100797"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-100797","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-100797"}],"summary":"Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157,"}