{"action":"Upgrade firefox-esr to 140.13.0esr-1~deb12u1 or later.","affected":[{"fixed":"140.13.0esr-1~deb12u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["140.13.0esr-1~deb12u1"],"id":"tcs_01M5NQQ36F8TF14AE9T3FR9FGQ","modified_at":"2026-10-25T09:47:36.600271508Z","published_at":"2026-07-21T13:17:13.460Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-16383","https://security-tracker.debian.org/tracker/CVE-2026-16383"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-16383","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-16383"}],"summary":"Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."}