CVE-2026-0397 LOW

CVE-2026-0397: Information disclosure via CORS misconfiguration

Vendor Powerdns
Product DNSdist
Published March 31, 2026
Last update March 31, 2026

CVSS base score

3.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
March 31, 2026 Record updated