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.
Published: 2026-04-22
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 27 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
cpe:2.3:a:powerdns:recursor:5.4.0:*:*:*:*:*:*:*

Wed, 22 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Powerdns
Powerdns recursor
Vendors & Products Powerdns
Powerdns recursor

Wed, 22 Apr 2026 10:15:00 +0000

Type Values Removed Values Added
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.
Title Unbounded memory allocation by internal web server
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Powerdns Recursor
cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published:

Updated: 2026-04-22T18:10:36.938Z

Reserved: 2026-03-18T10:06:16.572Z

Link: CVE-2026-33256

cve-icon Vulnrichment

Updated: 2026-04-22T18:00:39.099Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-22T10:16:51.193

Modified: 2026-04-27T17:04:04.123

Link: CVE-2026-33256

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-29T00:30:16Z

Weaknesses