{"action":"Upgrade thunderbird to 1:140.13.0esr-2~deb12u1 or later.","affected":[{"fixed":"1:140.13.0esr-2~deb12u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:140.13.0esr-2~deb12u1"],"id":"tcs_01M5NQPX4A63M3ZJAXY951RW0H","modified_at":"2026-10-25T09:47:35.381268359Z","published_at":"2026-07-21T13:17:04.840Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-16363","https://security-tracker.debian.org/tracker/CVE-2026-16363"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-16363#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-16363"}],"summary":"JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."}