{"id":"CVE-2026-31933","state":"PUBLISHED","title":"Suricata stream: quadratic complexity in stream inspection","description":"Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, specially crafted traffic can cause Suricata to slow down, affecting performance in IDS mode. This issue has been patched in versions 7.0.15 and 8.0.4.","publishedAt":"2026-04-02T14:03:35.917Z","updatedAt":"2026-04-03T16:01:09.310Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OISF suricata"],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":"< 7.0.15","status":"affected"},{"version":">= 8.0.0, < 8.0.4","status":"affected"}]}],"references":["https://github.com/OISF/suricata/security/advisories/GHSA-hvp5-gpr6-j4gp","https://redmine.openinfosecfoundation.org/issues/8272"],"weaknesses":["CWE-407"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31933.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31933","state":"PUBLISHED","datePublished":"2026-04-02T14:03:35.917Z","dateUpdated":"2026-04-03T16:01:09.310Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-10T15:10:10.654Z"},"containers":{"cna":{"title":"Suricata stream: quadratic complexity in stream inspection","descriptions":[{"lang":"en","value":"Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, specially crafted traffic can cause Suricata to slow down, affecting performance in IDS mode. This issue has been patched in versions 7.0.15 and 8.0.4."}],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":"< 7.0.15","status":"affected"},{"version":">= 8.0.0, < 8.0.4","status":"affected"}]}],"references":[{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-hvp5-gpr6-j4gp","name":"https://github.com/OISF/suricata/security/advisories/GHSA-hvp5-gpr6-j4gp","tags":["x_refsource_CONFIRM"]},{"url":"https://redmine.openinfosecfoundation.org/issues/8272","name":"https://redmine.openinfosecfoundation.org/issues/8272","tags":["x_refsource_MISC"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-407","lang":"en","description":"CWE-407: Inefficient Algorithmic Complexity","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-02T14:03:35.917Z"},"source":{"advisory":"GHSA-hvp5-gpr6-j4gp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-03T16:00:34.285774Z","id":"CVE-2026-31933","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-03T16:01:09.310Z"}}]}}}