{"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": "2026-01-27T18:33:50.354Z"}, "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-22264", "lastModified": "2026-01-27T19:16:14.640", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-01-27T19:16:14.640", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715"}, {"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2"}, {"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b"}, {"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5"}, {"source": "security-advisories@github.com", "url": "https://redmine.openinfosecfoundation.org/issues/8190"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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{}