REST API Vulnerability in PowerDNS Authoritative Servers
CVE-2026-33611

6.5MEDIUM

Key Information:

Vendor

Powerdns

Status
Authoritative
Vendor
CVE Published:
22 April 2026

What is CVE-2026-33611?

An operator with access to the REST API can manipulate the PowerDNS Authoritative Server to generate invalid HTTPS or SVCB record data. This vulnerability can lead to corruption of the LMDB database when it utilizes the LMDB backend, posing significant risks to data integrity and functionality.

Affected Version(s)

Authoritative 5.0.0 < 5.0.4

Authoritative 4.9.0 < 4.9.14

References

https://docs.powerdns.com/authoritative/security-advisori...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tibs
.