{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31931","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-10T15:10:10.653Z","datePublished":"2026-04-02T14:01:03.512Z","dateUpdated":"2026-04-02T14:18:27.902Z"},"containers":{"cna":{"title":"Suricata tls: null dereference in tls.alpn rule keyword","problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","description":"CWE-476: NULL Pointer Dereference","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-gr22-4784-xvw3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3"},{"name":"https://redmine.openinfosecfoundation.org/issues/8294","tags":["x_refsource_MISC"],"url":"https://redmine.openinfosecfoundation.org/issues/8294"}],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":">= 8.0.0, < 8.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-02T14:01:03.512Z"},"descriptions":[{"lang":"en","value":"Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of the \"tls.alpn\" rule keyword can cause Suricata to crash with a NULL dereference. This issue has been patched in version 8.0.4."}],"source":{"advisory":"GHSA-gr22-4784-xvw3","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-02T14:18:13.377669Z","id":"CVE-2026-31931","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":"2026-04-02T14:18:27.902Z"}}]}}