{"id":"CVE-2026-110249","revision":"ab3aee14c2814f7b8cadba60fd525154","records":[{"revision":"ab3aee14c2814f7b8cadba60fd525154","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110249","aliases":[],"title":"Denial-of-service in the Exchange email component","description":"A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5.","state":0,"publishedAt":"2026-10-13T18:08:38.179+00:00","modifiedAt":"2026-10-21T17:25:10.583+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\",\n                            \"lessThanOrEqual\": \"153.*\",\n                            \"versionType\": \"rpm\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"158\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2077826","https://www.mozilla.org/security/advisories/mfsa2026-109/","https://www.mozilla.org/security/advisories/mfsa2026-110/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110249","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110249","identifiers":["CVE-2026-110249"]},"retained":false,"historicalAffected":[]}],"coverage":[]}