CVE-2026-33257 MEDIUM

CVE-2026-33257: Insufficient input validation of internal webserver

Vendor Powerdns
Product Authoritative
Published April 22, 2026
Last update April 22, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 22, 2026 Record updated