{"action":"Upgrade thunderbird to 91.4.1-r0 or later.","affected":[{"fixed":"91.4.1-r0","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["91.4.1-r0"],"id":"tcs_01M6GW9DMKN6GS28T43QC0JC9R","modified_at":"2026-11-03T06:32:41.264595615Z","published_at":"2022-12-22T20:15:11.647Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-4126","https://security.alpinelinux.org/vuln/CVE-2021-4126"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-4126#Alpine:v3.23/thunderbird","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-4126"}],"summary":"When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the"}