{"action":"Upgrade thunderbird to 1:153.5.1esr-1~deb12u1 or later.","affected":[{"fixed":"1:153.5.1esr-1~deb12u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:153.5.1esr-1~deb12u1"],"id":"tcs_01M5NQ01KXYPNAPY7WH89W2Z3M","modified_at":"2026-10-26T20:00:12.472679147Z","published_at":"2026-10-13T19:18:49.590Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-110249","https://security-tracker.debian.org/tracker/CVE-2026-110249"],"severity":{"label":"high","score":8.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-110249","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-110249"}],"summary":"A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for"}