CVE-2026-33256 — Unbounded memory allocation by internal web server

CVE-2026-33256

Unbounded memory allocation by internal web server PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
PowerDNS / Recursor	affected 5.4.0 before 5.4.1; affected 5.3.0 before 5.3.6; affected 5.2.0 before 5.2.9

CWE

No CWE identifiers supplied.

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.