{"action":"Upgrade thunderbird to 1:102.3.0-1 or later.","affected":[{"fixed":"1:102.3.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:102.3.0-1"],"id":"tcs_01M5NGY68G4H27NP9FHECXGG34","modified_at":"2026-10-15T08:02:41.371053852Z","published_at":"2022-12-22T20:15:38.693Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2022-40956","https://security-tracker.debian.org/tracker/CVE-2022-40956"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2022-40956#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2022-40956"}],"summary":"When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird"}