{"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_01M6GM5QHCF72CKT4N9H83MCPX","modified_at":"2026-11-03T06:32:25.076035786Z","published_at":"2020-12-09T01:15:12.503Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-26950","https://security.alpinelinux.org/vuln/CVE-2020-26950"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-26950#Alpine:v3.22/thunderbird","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-26950"}],"summary":"In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox E"}