{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94083", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-09-20T01:18:05.348Z", "datePublished": "2026-09-20T01:18:05.744Z", "dateUpdated": "2026-09-20T01:18:05.744Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Suricata", "vendor": "OISF", "versions": [{"lessThan": "8.0.7", "status": "affected", "version": "8.0.0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-843", "description": "CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-20T01:18:05.744Z"}, "references": [{"url": "https://forum.suricata.io/t/suricata-8-0-7-released/6467"}, {"url": "https://github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074"}, {"url": "https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.0.0", "versionEndExcluding": "8.0.7"}]}]}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Suricata", "vendor": "OISF", "versions": [{"lessThan": "8.0.7", "status": "affected", "version": "8.0.0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions."}], "id": "CVE-2026-94083", "lastModified": "2026-09-20T02:16:53.520", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.5, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-09-20T02:16:53.520", "references": [{"source": "[email protected]", "url": "https://forum.suricata.io/t/suricata-8-0-7-released/6467"}, {"source": "[email protected]", "url": "https://github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074"}, {"source": "[email protected]", "url": "https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.7)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Suricata", "source": "cna", "vendor": "OISF"}, "product": "suricata", "vendor": "oisf"}], "created": "2026-09-20T03:00:11.234998+00:00", "title": "Suricata DoH2 Type Confusion Leads to Invalid Free", "updated": "2026-09-20T03:30:13.556141+00:00", "vendors": ["oisf", "oisf$PRODUCT$suricata"]}