Unbounded memory allocation by internal web server_CVE-2026-33256

5.3 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-33256

Source OX

Published Apr 22, 2026 at 09:37

Affected Product

Vendor PowerDNS

Product Recursor

Version 5.4.0

Affected Versions PowerDNS Recursor 5.4.0
PowerDNS Recursor 5.3.0
PowerDNS Recursor 5.2.0

CWE Classification

References

docs.powerdns.com /recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html

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