CVE-2026-123589 Hickory DNS before 0.26.2 Denial of Service via Missing DNS-over-QUIC Request Read Timeout

The DNS-over-QUIC DoQ server in hickory-server hickory-dns before 0.26.2 does not apply any timeout when reading a request message from a QUIC stream, bypassing all configured timeouts. A remote unauthenticated client can open a connection and a request stream and hold it open indefinitely,...