{"action":"Upgrade thunderbird to 1:140.4.0esr-1~deb13u1 or later.","affected":[{"fixed":"1:140.4.0esr-1~deb13u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:140.4.0esr-1~deb13u1"],"id":"tcs_01M5NMVY9PHWSAFSKP5RXCWDR8","modified_at":"2026-10-24T09:47:35.966409002Z","published_at":"2025-10-14T13:15:37.447Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-11712","https://security-tracker.debian.org/tracker/CVE-2025-11712"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-11712#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-11712"}],"summary":"A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contribute"}