{"api_version":"1","generated_at":"2026-11-11T01:20:14+00:00","cve":"CVE-2026-126132","urls":{"html":"https://cve.report/CVE-2026-126132","api":"https://cve.report/api/cve/CVE-2026-126132.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-126132","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-126132"},"summary":{"title":"Attachments could be replaced with local file content when forwarding","description":"When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the message was saved or sent. This could disclose local files, or content from the user's network, to the message recipients or to the mail provider.\nThis bug only affects Thunderbird on Linux and Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7.","state":"PUBLISHED","assigner":"mozilla","published_at":"2026-11-10 19:21:13","updated_at":"2026-11-10 21:19:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2026-128/","name":"https://www.mozilla.org/security/advisories/mfsa2026-128/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-129/","name":"https://www.mozilla.org/security/advisories/mfsa2026-129/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2081919","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=2081919","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-126132","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126132","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 153.7 153.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 160 * rpm","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Christopher Bohn (Protectstar Inc.)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"153.*","status":"unaffected","version":"153.7","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"160","versionType":"rpm"}]}],"credits":[{"lang":"en","value":"Christopher Bohn (Protectstar Inc.)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the message was saved or sent. This could disclose local files, or content from the user's network, to the message recipients or to the mail provider.<br />This bug only affects Thunderbird on Linux and Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7."}],"value":"When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the message was saved or sent. This could disclose local files, or content from the user's network, to the message recipients or to the mail provider.\nThis bug only affects Thunderbird on Linux and Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7."}],"providerMetadata":{"dateUpdated":"2026-11-10T20:24:06.460Z","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla"},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2081919"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-128/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-129/"}],"title":"Attachments could be replaced with local file content when forwarding"}},"cveMetadata":{"assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","assignerShortName":"mozilla","cveId":"CVE-2026-126132","datePublished":"2026-11-10T18:59:53.143Z","dateReserved":"2026-11-10T18:59:52.486Z","dateUpdated":"2026-11-10T20:24:06.460Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-10 19:21:13","lastModifiedDate":"2026-11-10 21:19:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"126132","Ordinal":"1","Title":"Attachments could be replaced with local file content when forwa","CVE":"CVE-2026-126132","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"126132","Ordinal":"1","NoteData":"When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the message was saved or sent. This could disclose local files, or content from the user's network, to the message recipients or to the mail provider.\nThis bug only affects Thunderbird on Linux and Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7.","Type":"Description","Title":"Attachments could be replaced with local file content when forwa"}]}}}