{"schemaVersion":3,"id":"CVE-2026-31931","aliases":["UBUNTU-CVE-2026-31931","DEBIAN-CVE-2026-31931"],"status":"published","duplicateOf":null,"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. 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