CVE-2026-123577 Hickory DNS 0.24.0 before 0.26.2 DoH Unbounded Request Body Denial of Service

Hickory DNS from 0.24.0 before 0.26.2 contains a resource exhaustion vulnerability that allows remote attackers to consume server memory via unbounded DoH request bodies. Attackers can send large request bodies over HTTP/2 or HTTP/3 to a DNS over HTTP server, causing memory exhaustion and denial ...