{"action":"Upgrade firefox-esr to 140.11.0esr-1~deb12u1 or later.","affected":[{"fixed":"140.11.0esr-1~deb12u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["140.11.0esr-1~deb12u1"],"id":"tcs_01M5NW77BT20VZ042APKKG287Q","modified_at":"2026-10-15T09:47:43.478977193Z","published_at":"2026-05-19T14:16:51.257Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-8950","https://security-tracker.debian.org/tracker/CVE-2026-8950"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-8950","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-8950"}],"summary":"Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11."}