CVE-2026-0397 — Information disclosure via CORS misconfiguration

CVE-2026-0397

Information disclosure via CORS misconfiguration PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
PowerDNS / DNSdist	affected 1.9.0 before 1.9.12; affected 2.0.0 before 2.0.3

CWE

No CWE identifiers supplied.

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.