CVE-2026-42005

Insufficient input validation of internal web server

State: Published
Severity: 4.3 Medium
Published: Jun 25, 2026
Updated: Jun 25, 2026
Reserved: Apr 23, 2026

Description

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	OX

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
AuthoritativePowerDNS	4.9.0 to before 4.9.16Affected 5.0.0 to before 5.0.6Affected 5.1.0 to before 5.1.2Affected

References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html

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