{"action":"Upgrade thunderbird to 1:153.2.0esr-1 or later.","affected":[{"fixed":"1:153.2.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:153.2.0esr-1"],"id":"tcs_01M5NVYRYYH87E5SXJXZCCWXBR","modified_at":"2026-10-06T16:01:43.668968615Z","published_at":"2026-09-01T22:17:19.900Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-84641","https://security-tracker.debian.org/tracker/CVE-2026-84641"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-84641#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-84641"}],"summary":"A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in T"}