Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Hickory Project
  • Hickory Dns

No data.

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References
Link Providers
https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq cve-icon cve-icon
History

Mon, 27 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Hickory Project
Hickory Project hickory Dns
Vendors & Products Hickory Project
Hickory Project hickory Dns

Mon, 27 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 26 Apr 2026 03:00:00 +0000

Type Values Removed Values Added
Description Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.
Weaknesses CWE-706
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-04-27T13:33:50.961Z

Reserved: 2026-04-26T02:38:40.734Z

Link: CVE-2026-42254

cve-icon Vulnrichment

Updated: 2026-04-27T13:18:58.827Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-26T03:15:59.080

Modified: 2026-04-27T18:57:20.293

Link: CVE-2026-42254

cve-icon Redhat

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