CVE-2026-123605

HighCVSS 8.8/10Last modified Nov 10, 2026

Description

Hickory DNS hickory-proto 0.1 through 0.25.0-alpha.3 and hickory-net before 0.26.2 contain a DNSSEC validation bypass because the validator verifies an RRSIG against the DNSKEY of whatever name appears in its Signer's Name field without checking that this name is the zone containing the RRset. Attackers controlling any secure zone can produce valid signatures over arbitrary records in unrelated zones, which resolvers, recursors, and clients using DnssecDnsHandle accept as authenticated.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
hickory-dns	hickory-dns	>= 0.1, <= 0.25.0-alpha.3
hickory-dns	hickory-dns	>= 0.26.0-beta.1, < 0.26.2

References

Timeline

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

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