{"id":"CVE-2026-31931","state":"PUBLISHED","title":"Suricata tls: null dereference in tls.alpn rule keyword","description":"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.","publishedAt":"2026-04-02T14:01:03.512Z","updatedAt":"2026-04-02T14:18:27.902Z","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":">= 8.0.0, < 8.0.4","status":"affected"}]}],"references":["https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3","https://redmine.openinfosecfoundation.org/issues/8294"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31931.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31931","state":"PUBLISHED","datePublished":"2026-04-02T14:01:03.512Z","dateUpdated":"2026-04-02T14:18:27.902Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-10T15:10:10.653Z"},"containers":{"cna":{"title":"Suricata tls: null dereference in tls.alpn rule keyword","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."}],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":">= 8.0.0, < 8.0.4","status":"affected"}]}],"references":[{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3","name":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3","tags":["x_refsource_CONFIRM"]},{"url":"https://redmine.openinfosecfoundation.org/issues/8294","name":"https://redmine.openinfosecfoundation.org/issues/8294","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-476","lang":"en","description":"CWE-476: NULL Pointer Dereference","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-02T14:01:03.512Z"},"source":{"advisory":"GHSA-gr22-4784-xvw3","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-02T14:18:27.902Z"}}]}}}