{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46387", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T19:53:47.922Z", "datePublished": "2026-09-10T14:10:28.160Z", "dateUpdated": "2026-09-10T14:58:24.167Z"}, "containers": {"cna": {"title": "Suricata http2: decompression bomb can cause denial of service in Suricata", "problemTypes": [{"descriptions": [{"cweId": "CWE-409", "lang": "en", "description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/OISF/suricata/security/advisories/GHSA-45p7-j5wm-8wrx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OISF/suricata/security/advisories/GHSA-45p7-j5wm-8wrx"}, {"name": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315", "tags": ["x_refsource_MISC"], "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"}, {"name": "https://redmine.openinfosecfoundation.org/issues/8513", "tags": ["x_refsource_MISC"], "url": "https://redmine.openinfosecfoundation.org/issues/8513"}], "affected": [{"vendor": "OISF", "product": "suricata", "versions": [{"version": "< 7.0.16", "status": "affected"}, {"version": ">= 8.0.0, < 8.0.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-10T14:10:28.160Z"}, "descriptions": [{"lang": "en", "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2."}], "source": {"advisory": "GHSA-45p7-j5wm-8wrx", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-10T14:57:43.324169Z", "id": "CVE-2026-46387", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-09-10T14:58:24.167Z"}}]}}

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{"affected": [{"affectedData": [{"product": "suricata", "vendor": "OISF", "versions": [{"status": "affected", "version": "< 7.0.16"}, {"status": "affected", "version": ">= 8.0.0, < 8.0.5"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2."}], "id": "CVE-2026-46387", "lastModified": "2026-09-10T19:54:25.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46387", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-10T14:57:43.324169Z", "version": "2.0.3"}}]}, "published": "2026-09-10T15:17:35.267", "references": [{"source": "[email protected]", "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"}, {"source": "[email protected]", "url": "https://github.com/OISF/suricata/security/advisories/GHSA-45p7-j5wm-8wrx"}, {"source": "[email protected]", "url": "https://redmine.openinfosecfoundation.org/issues/8513"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-409"}], "source": "[email protected]", "type": "Primary"}]}

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{"created": "2026-09-10T15:45:05.249166+00:00", "updated": "2026-09-10T15:45:05.249172+00:00", "vendors": []}