hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.

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Fixes

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History

Wed, 23 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-354
References
Metrics threat_severity

None

threat_severity

Important


Mon, 21 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 19 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Hickory-dns
Hickory-dns hickory-resolver
Vendors & Products Hickory-dns
Hickory-dns hickory-resolver

Fri, 18 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Description hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.
Title hickory-resolver before 0.26.2 DNSSEC Validation Bypass
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-21T20:51:40.507Z

Reserved: 2026-09-18T13:30:25.560Z

Link: CVE-2026-93657

cve-icon Vulnrichment

Updated: 2026-09-21T16:28:50.433Z

cve-icon NVD

Status : Deferred

Published: 2026-09-18T15:17:22.190

Modified: 2026-09-22T20:53:07.383

Link: CVE-2026-93657

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-18T14:23:20Z

Links: CVE-2026-93657 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T01:45:19Z

Weaknesses