{"id":"CVE-2026-109783","revision":"ceb85581da3748d8a6917513e9f7bca4","records":[{"revision":"ceb85581da3748d8a6917513e9f7bca4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109783","aliases":[],"title":"Mitigation bypass in the File Handling component","description":"Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.","state":0,"publishedAt":"2026-10-13T12:29:36.256+00:00","modifiedAt":"2026-10-13T18:17:24.062+00:00","affected":[{"ecosystem":"Vendor product","name":"Firefox","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Firefox\",\n                    \"vendor\": \"Mozilla\",\n                    \"versions\": [\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"153.5\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"},{"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\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2075533","https://www.mozilla.org/security/advisories/mfsa2026-108/","https://www.mozilla.org/security/advisories/mfsa2026-110/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109783","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109783","identifiers":["CVE-2026-109783"]},"retained":false,"historicalAffected":[]}],"coverage":[]}