SecuriTricks - CVE-2026-42254

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.

Product(s) Impacted

Vendor	Product	Versions
Hickory	Hickory Recursor	0.1-0.25.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-706

Use of Incorrectly-Resolved Name or Reference

The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	hickory	hickory_recursor	0.1-0.25.2	/	/	/	/	/	/	/

References

https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq

CVSS Score

4.0 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: CHANGED
Confidentiality Impact: NONE
Integrity Impact: LOW
Availability Impact: NONE

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

View Vector String

Timeline

Published: April 26, 2026, 3:15 a.m.
Last Modified: April 27, 2026, 6:57 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-42254