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.

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Hickory Project Hickory DNS unaffected
Version Status Constraints
0.1 affected < 0.26

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-04-26T03:10:54.172Z

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

Link: CVE-2026-42254

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-42254

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses