{"action":"Upgrade firefox-esr to 140.16.0esr-1 or later.","affected":[{"fixed":"140.16.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["140.16.0esr-1"],"id":"tcs_01M5NWNC79VJ0CV98T82WFPAA2","modified_at":"2026-10-07T09:47:30.169005173Z","published_at":"2026-09-15T13:16:52.210Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-92021","https://security-tracker.debian.org/tracker/CVE-2026-92021"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-92021#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-92021"}],"summary":"Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16."}