{"action":"Upgrade thunderbird to 1:140.17.0esr-1~deb12u1 or later.","affected":[{"fixed":"1:140.17.0esr-1~deb12u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:140.17.0esr-1~deb12u1"],"id":"tcs_01M5NPHEXNWP7V45D52KFF6HSH","modified_at":"2026-10-23T17:47:23.376799592Z","published_at":"2026-09-29T13:17:43.817Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-100788","https://security-tracker.debian.org/tracker/CVE-2026-100788"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-100788#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-100788"}],"summary":"Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17"}