{"id":"CVE-2026-113866","revision":"00136531bb934739b7920ea64a3a5722","records":[{"revision":"00136531bb934739b7920ea64a3a5722","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113866","aliases":[],"title":"Account password sent unencrypted during Exchange account setup","description":"When setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials the user had entered, allowing a network attacker to obtain the user's password. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1.","state":0,"publishedAt":"2026-10-20T19:14:54.646+00:00","modifiedAt":"2026-10-20T19:46:38.284+00:00","affected":[{"ecosystem":"Vendor product","name":"Thunderbird","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Thunderbird\",\n                    \"vendor\": \"Mozilla\",\n                    \"versions\": [\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"153.5.1\",\n                            \"lessThanOrEqual\": \"153.*\",\n                            \"versionType\": \"rpm\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"158.0.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2080121","https://www.mozilla.org/security/advisories/mfsa2026-114/","https://www.mozilla.org/security/advisories/mfsa2026-115/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113866","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113866","identifiers":["CVE-2026-113866"]},"retained":false,"historicalAffected":[]}],"coverage":[]}