{"action":"Upgrade thunderbird to 1:140.8.0esr-1~deb12u1 or later.","affected":[{"fixed":"1:140.8.0esr-1~deb12u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:140.8.0esr-1~deb12u1"],"id":"tcs_01M5NRF416E3BSYG29DSFREQ8D","modified_at":"2026-10-01T03:03:09.247915775Z","published_at":"2026-02-24T14:16:24.147Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-2759","https://security-tracker.debian.org/tracker/CVE-2026-2759"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-2759#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-2759"}],"summary":"Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."}