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CVE-2026-33257

nvd nist
Published: Apr 22, 2026Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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.

Affected (7)

Powerdns
3 products
Authoritative
Dnsdist
Recursor
Configuration A
7 vulnerable
Vulnerable SoftwareAffected Versions
Powerdns
Authoritative
From 4.9.0 to 4.9.14
Authoritative
From 5.0.0 to 5.0.4
Powerdns
Dnsdist
From 1.9.0 to 1.9.13
Dnsdist
From 2.0.0 to 2.0.4
Powerdns
Recursor
From 5.2.0 to 5.2.9
Recursor
From 5.3.0 to 5.3.6
Recursor
Version 5.4.0

Related CWEs

CWE-770
Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (3)

Source: security@open-xchange.com
Vendor Advisory
Source: security@open-xchange.com
Broken LinkVendor Advisory
Source: security@open-xchange.com
Vendor Advisory

Timeline

No history available yet.