{"action":"Upgrade firefox-esr to 140.14.0esr-2 or later.","affected":[{"fixed":"140.14.0esr-2","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["140.14.0esr-2"],"id":"tcs_01M5NVBM2GDS3BFJS6ZZ40P5ZX","modified_at":"2026-10-01T03:03:41.962403299Z","published_at":"2026-08-18T13:17:32.230Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-74953","https://security-tracker.debian.org/tracker/CVE-2026-74953"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-74953#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-74953"}],"summary":"Privilege escalation in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153."}