{"id":"CVE-2026-109768","title":"Denial-of-service in the Site Reports component","summary":"Denial-of-service in the Site Reports component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T19:18:41.043","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109768","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2011368","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-109/","label":"security@mozilla.org"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-13T13:27:04.013Z","vendor":"Mozilla","product":"Firefox","affected":["Firefox","Thunderbird"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T14:55:00.564624Z"},"epss":0.00238,"epssPercentile":0.1474,"slug":"CVE-2026-109768","body":"## Overview\n\nDenial-of-service in the Site Reports component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":219779,"id":"CVE-2026-109768","ts":1791905698424,"field":"cvss","old":null,"new":"6.5"},{"seq":219778,"id":"CVE-2026-109768","ts":1791905698424,"field":"severity","old":"none","new":"medium"}]}