{"id":"CVE-2026-118175","aliases":[],"title":"Content of other messages could be included when replying to a crafted message","titleSource":"mozilla","descriptionSource":"mozilla","products":[{"vendor":"Mozilla","name":"Thunderbird","platforms":[],"versions":[{"version":"153.6","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"159","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}],"source":"mozilla","url":"https://www.cve.org/CVERecord?id=CVE-2026-118175"}],"remediation":[],"description":"When replying to, forwarding, or editing a crafted email message as new, Thunderbird could embed parts of a different message stored in the same folder into the message being composed, without showing a blocked content warning. If the user sent the message, the content of the other message was disclosed to the recipients. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.","severity":"unknown","score":null,"published":"2026-10-27T18:16:29.537Z","modified":"2026-10-27T18:27:47.611Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2081720","https://www.mozilla.org/security/advisories/mfsa2026-121/","https://www.mozilla.org/security/advisories/mfsa2026-122/"],"sources":[{"name":"CVE","id":"CVE-2026-118175","modified":"2026-10-27T18:27:47.611Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118175"}],"assessments":[],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T22:30:31.386Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}