New Denial of Service Vulnerability (CVE-2026-90668) Discovered in UnrealIRCd

A new vulnerability, CVE-2026-90668, has been identified in UnrealIRCd versions 6.0.5 through 6.2.6 before 6.2.7. The webserver in these versions does not adequately limit the number of HTTP request headers, making it susceptible to remote denial-of-service attacks through excessive memory consumption and rendering the server unresponsive.