{"action":"Upgrade thunderbird to 1:128.12.0esr-1 or later.","affected":[{"fixed":"1:128.12.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:128.12.0esr-1"],"id":"tcs_01M5NP3T5REXBG20ZXN8FK0MQ5","modified_at":"2026-09-01T20:05:54.996400127Z","published_at":"2025-06-11T12:15:29.183Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-5986","https://security-tracker.debian.org/tracker/CVE-2025-5986"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-5986#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-5986"}],"summary":"A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This"}