CVEvulnerability
CVE-2026-33257
7.5 HIGH
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 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 configurations
• powerdns authoritative (>= 4.9.0 < 4.9.14)
• powerdns authoritative (>= 5.0.0 < 5.0.4)
• powerdns dnsdist (>= 1.9.0 < 1.9.13)
• powerdns dnsdist (>= 2.0.0 < 2.0.4)
• powerdns recursor (>= 5.2.0 < 5.2.9)
• powerdns recursor (>= 5.3.0 < 5.3.6)
• powerdns recursor 5.4.0
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html Vendor Advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html Broken Link, Vendor Advisory
- https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html Vendor Advisory