{"action":"Upgrade thunderbird to 1:153.4.0esr-1 or later.","affected":[{"fixed":"1:153.4.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:153.4.0esr-1"],"id":"tcs_01M5NPHBV31TEJSN84VF2KX5DE","modified_at":"2026-10-06T16:01:36.826533813Z","published_at":"2026-09-29T13:17:43.247Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-100783","https://security-tracker.debian.org/tracker/CVE-2026-100783"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-100783#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-100783"}],"summary":"Uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firef"}