{"id":"CLEANSTART-2024-ZQ38077","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 t...","details":"Security vulnerability affects the thunderbird package. 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 inner signed message for the signature validity.","modified":"2026-10-31T16:03:11.700250216Z","published":"2026-10-31T14:15:26.623130Z","upstream":["CVE-2021-4126"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-ZQ38077.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-4126"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4126"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/thunderbird"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.4.1-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZQ38077.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"}]}