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CVE-2026-123597 Details

Description

Hickory DNS hickory-proto 0.25.0-alpha.1 through 0.26.0-alpha.1 and hickory-net before 0.26.2 contain a logic bug in DnssecDnsHandle's DS-fetch path that caches transient DS lookup errors as Bogus DNSSEC validation verdicts. An attacker who induces a SERVFAIL, REFUSED, or timeout response to a child-zone DS sub-query causes the validator to return SERVFAIL for all names under that zone until the cache entry's TTL expires.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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-xv7c-h5g9-x25x	[email protected]
https://www.vulncheck.com/advisories/hickory-dns-dnssec-validation-cache-poisoning-via-transient-ds-fetch-errors	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-613	Insufficient Session Expiration	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes