CVE-2026-0398

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-0398
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
History

20 Apr 2026, 14:55

Type Values Removed Values Added
Summary
  • (es) Zonas manipuladas pueden llevar a un mayor uso de recursos y cadenas CNAME manipuladas pueden llevar a envenenamiento de caché en Recursor.
References () https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html - () https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html - Vendor Advisory
CPE cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
First Time Powerdns
Powerdns recursor

09 Feb 2026, 16:16

Type Values Removed Values Added
CWE CWE-770

09 Feb 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-09 15:16

Updated : 2026-04-20 14:55

NVD link : CVE-2026-0398

Mitre link : CVE-2026-0398

CVE.ORG link : CVE-2026-0398

JSON object : View

Products Affected

powerdns

  • recursor
CWE
CWE-770

Allocation of Resources Without Limits or Throttling