CORS Misconfiguration in PowerDNS Affects Administrator Dashboard Security
CVE-2026-0397

3.1LOW

Key Information:

Vendor

Powerdns

Status
Dnsdist
Vendor
CVE Published:
31 March 2026

What is CVE-2026-0397?

A vulnerability in PowerDNS allows attackers to exploit the misconfiguration of the Cross-Origin Resource Sharing (CORS) policy. When the internal webserver is enabled, it can trick administrators logged into the dashboard into visiting a malicious website. This could lead to unauthorized access to sensitive information about the running configuration of PowerDNS instances, potentially compromising system integrity.

Affected Version(s)

DNSdist 1.9.0 < 1.9.12

DNSdist 2.0.0 < 2.0.3

References

https://www.dnsdist.org/security-advisories/powerdns-advi...

CVSS V3.1

Score:
3.1
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Surya Narayan Kushwaha (aka Cavid)
.