CVE-2026-123577
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Nov 08, 2026
Vendor
unknown
Description
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 of service.