CVEvulnerability

CVE-2026-33254

7.5 HIGH Published 2026-04-22 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-04-22
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770

Description

An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default.

Affected configurations

• powerdns dnsdist (>= 1.9.0 < 1.9.13) • powerdns dnsdist (>= 2.0.0 < 2.0.4)

Related

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References