CVE-2026-123589

MediumCVSS 5.3/10Last modified Nov 10, 2026

Description

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, consuming server resources and causing a denial of service.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Nov 8, 2026
Last modified
Nov 10, 2026
NVD status
Deferred

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CVE-2026-123589: Medium severity, CVSS 5.3 | Vulnix