{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22264","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-01-07T05:19:12.923Z","datePublished":"2026-01-27T18:33:50.354Z","dateUpdated":"2026-01-28T14:02:38.233Z"},"containers":{"cna":{"title":"Suricata detect/alert: heap-use-after-free on alert queue expansion","problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416: Use After Free","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5"},{"name":"https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715"},{"name":"https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2"},{"name":"https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b"},{"name":"https://redmine.openinfosecfoundation.org/issues/8190","tags":["x_refsource_MISC"],"url":"https://redmine.openinfosecfoundation.org/issues/8190"}],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":"< 7.0.14","status":"affected"},{"version":">= 8.0.0, < 8.0.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-01-27T18:33:50.354Z"},"descriptions":[{"lang":"en","value":"Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet."}],"source":{"advisory":"GHSA-mqr8-m3m4-2hw5","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-28T14:02:26.152409Z","id":"CVE-2026-22264","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-28T14:02:38.233Z"}}]}}