CVE-2026-0397 PUBLISHED

Information disclosure via CORS misconfiguration

Assigner: OX
Reserved: 28.11.2025 Published: 31.03.2026 Updated: 31.03.2026

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.

Metrics

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

Product Status

Vendor PowerDNS
Product DNSdist
Versions Default: unaffected
  • affected from 1.9.0 to 1.9.12 (excl.)
  • affected from 2.0.0 to 2.0.3 (excl.)

Credits

  • Surya Narayan Kushwaha (aka Cavid) finder

References

Problem Types

  • Overly Permissive Cross-domain Whitelist CWE