{"id":"CVE-2026-113869","aliases":[],"title":"Use-after-free in S/MIME decryption during a security device password prompt","titleSource":"mozilla","descriptionSource":"mozilla","products":[{"vendor":"Mozilla","name":"Thunderbird","platforms":[],"versions":[{"version":"153.6","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"158.0.1","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}],"source":"mozilla","url":"https://www.cve.org/CVERecord?id=CVE-2026-113869"}],"remediation":[],"description":"When Thunderbird asked for a security device password (for example a smartcard PIN or the Primary Password) while decrypting an S/MIME message, the message load could finish or be cancelled while the prompt was open. This freed the message decoder while it was still in use, causing a use-after-free and a potentially exploitable crash. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.6.","severity":"unknown","score":null,"published":"2026-10-20T19:14:55.862Z","modified":"2026-10-27T18:30:32.292Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2075530","https://www.mozilla.org/security/advisories/mfsa2026-114/","https://www.mozilla.org/security/advisories/mfsa2026-122/"],"sources":[{"name":"CVE","id":"CVE-2026-113869","modified":"2026-10-27T18:30:32.292Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-113869"}],"assessments":[],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T04:15:31.644Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}