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CVE-2026-123606 Details

Description

The hickory-dns recursor in hickory-recursor 0.25.0-alpha.3 through 0.25.2 and hickory-resolver 0.26.0-alpha.1 before 0.26.2 iterates every out-of-bailiwick NS target lacking glue in a referral without any per-query work budget. Remote attackers can serve such referrals to force A and AAAA lookups per target, amplifying traffic against remote servers or exhausting recursor resources.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-6h5c-jjg5-wj59	[email protected]
https://www.vulncheck.com/advisories/hickory-dns-recursor-0.25.0-alpha.3-through-0.25.2-glueless-ns-referral-amplification	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes