{"action":"Upgrade thunderbird to 1:140.8.0esr-1 or later.","affected":[{"fixed":"1:140.8.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:140.8.0esr-1"],"id":"tcs_01M5NRFRBGC802ED2J1G1AYM1C","modified_at":"2026-10-01T03:03:08.204838966Z","published_at":"2026-02-24T14:16:26.533Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-2781","https://security-tracker.debian.org/tracker/CVE-2026-2781"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-2781#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-2781"}],"summary":"Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35."}