CVE-2026-33256 (GCVE-0-2026-33256)

Vulnerability from cvelistv5 – Published: 2026-04-22 09:37 – Updated: 2026-04-22 18:10
VLAI?
Title
Unbounded memory allocation by internal web server
Summary
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.
CWE
  • Allocation of Resources Without Limits or Throttling
Assigner
OX
Impacted products
Vendor Product Version
PowerDNS Recursor Affected: 5.4.0 , < 5.4.1 (semver)
Affected: 5.3.0 , < 5.3.6 (semver)
Affected: 5.2.0 , < 5.2.9 (semver)
Create a notification for this product.
Date Public ?
2026-04-21 22:00
Credits
Ap4sh - Samy Medjahed and Ethicxz - Eliott Laurie Ap4sh / Ethicxz
Show details on NVD website

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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