CVE-2026-0397

When the internal webserver is enabled (default is disabled), an attacker might be able to trick an administrator logged to the dashboard into visiting a malicious website and extract information about the running configuration from the dashboard. The root cause of the issue is a misconfiguration of the Cross-Origin Resource Sharing (CORS) policy.

Score

CVSS 3.1 4.3 Medium

Status

Analyzed - security@open-xchange.com

Published

2026-03-31

Last modified

2026-03-31

Weaknesses

CWE-942

Affected products

• Dnsdist (Powerdns)

References

• https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html