CVE-2026-33256

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html	Vendor Advisory Broken Link

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor:5.4.0:::::::*

History

27 Apr 2026, 17:04

Type	Values Removed	Values Added
References	~~() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html -~~	() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html - Vendor Advisory, Broken Link
First Time		Powerdns Powerdns recursor
CPE		cpe:2.3:a:powerdns:recursor:5.4.0:::::::* cpe:2.3:a:powerdns:recursor::::::::

22 Apr 2026, 19:17

Type	Values Removed	Values Added
CWE		CWE-770

22 Apr 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-22 10:16

Updated : 2026-04-27 17:04

NVD link : CVE-2026-33256

Mitre link : CVE-2026-33256

CVE.ORG link : CVE-2026-33256

JSON object : View

Products Affected

powerdns

recursor

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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