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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-33256

Unbounded memory allocation by internal web server

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PowerDNS Recursor

Default version status: unaffected

  • 5.4.0 to < 5.4.1affected
  • 5.3.0 to < 5.3.6affected
  • 5.2.0 to < 5.2.9affected

References