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CVE-2026-42254

Medium

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.

SeverityMedium
CVSS4.0
Exploit probability—
ProductHickory DNS
PublishedApr 26, 2026
First seenApr 26, 2026
Weakness typeCWE-706CWE-706

How to fix

Update
  • Hickory Project Hickory DNS0.26 or later

Affected products

ProductAffected versionsFixed in
Hickory Project Hickory DNS0.1 ≤ v < 0.260.26

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