CVE-2026-71855 Suricata flow: IPv4/IPv6 hash collision can reuse wrong flow state

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, src/flow-hash.c can treat an IPv4 and IPv6 flow as equal without comparing the IP family when their raw address words, ports, protocol, VLAN, recursion...

CVE-2026-71855

Suricata prior to 7.0.17 and 8.0.6 contains a flow hash collision vulnerability in src/flow-hash.c . The flow hash function can treat an IPv4 and IPv6 flow as equal without comparing the IP family when their raw address words, ports, protocol, VLAN, recursion level, live device, and hash bucket a...