CVE-2026-33256

HighCVSS 7.5/10Last modified Oct 26, 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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

Vendor	Product	Versions
PowerDNS	Recursor	>= 5.4.0, < 5.4.1; >= 5.3.0, < 5.3.6; >= 5.2.0, < 5.2.9

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.htmlBroken Link, Vendor Advisory

Timeline

Published: Apr 22, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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