{"action":"Upgrade firefox-esr to 153.5.0esr-1 or later.","affected":[{"fixed":"153.5.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["153.5.0esr-1"],"id":"tcs_01M5NPXGR97TY6PC36JS2E26J3","modified_at":"2026-10-23T18:05:10.221221177Z","published_at":"2026-10-13T13:17:23.947Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-109734","https://security-tracker.debian.org/tracker/CVE-2026-109734"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-109734#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-109734"}],"summary":"Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."}