Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, there is a quadratic complexity issue when searching for URLs in mime…

A quadratic complexity vulnerability affects Suricata network IDS/IPS/NSM engine versions 8.0.0 to before 8.0.4. The issue occurs when searching for URLs in MIME encoded messages over SMTP protocol, causing significant performance degradation. This vulnerability can be exploited to cause denial of service through resource exhaustion. The issue has been resolved in Suricata version 8.0.4. Organizations running affected versions should upgrade immediately to prevent potential service disruption.