CVE-2026-123577
Received Received - Intake

Hickory DNS DoS via Unbounded DoH Request Bodies

Publication date: 2026-11-08

Last updated on: 2026-11-08

Assigner: VulnCheck

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.

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Meta Information

Published
2026-11-08
Last Modified
2026-11-08
Generated
2026-11-08
EPSS Evaluated
N/A
NVD
CVE-2026-123577
EUVD
EUVD-2026-119336

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
hickory dns From 0.24.0 (inc) to 0.26.2 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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