{"id":"CVE-2026-31931","summary":"Suricata tls: null dereference in tls.alpn rule keyword","details":"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.","aliases":["GHSA-gr22-4784-xvw3"],"modified":"2026-07-15T01:49:16.137068422Z","published":"2026-04-02T14:01:03.512Z","related":["openSUSE-SU-2026:10443-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31931.json"},"references":[{"type":"WEB","url":"https://redmine.openinfosecfoundation.org/issues/8294"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31931.json"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31931"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"6af634b19b36891d282c628a155345f9b37cbed9"}],"database_specific":{"cpe":"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.0.4"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["suricata-8.0.3","suricata-8.0.2","suricata-8.0.1","suricata-8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31931.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}