{"action":"Upgrade thunderbird to 1:140.9.0esr-1 or later.","affected":[{"fixed":"1:140.9.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:140.9.0esr-1"],"id":"tcs_01M5NRVYS4R0NJV35GSRAGJPCH","modified_at":"2026-10-01T03:03:22.488762003Z","published_at":"2026-03-24T21:16:29.330Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-3889","https://security-tracker.debian.org/tracker/CVE-2026-3889"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-3889#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-3889"}],"summary":"Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9."}