{"action":"Upgrade thunderbird to 78.5.1-r0 or later.","affected":[{"fixed":"78.5.1-r0","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.22","exploited":false,"fixed_versions":["78.5.1-r0"],"id":"tcs_01M6GM6FQY9FRQDFKCGHPRVZ2H","modified_at":"2026-11-03T06:32:25.283334155Z","published_at":"2020-12-09T01:15:13.143Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-26959","https://security.alpinelinux.org/vuln/CVE-2020-26959"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-26959#Alpine:v3.22/thunderbird","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-26959"}],"summary":"During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerabili"}