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Description

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.

PUBLISHED Reserved 2025-11-28 | Published 2026-03-31 | Updated 2026-03-31 | Assigner OX




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

Problem types

Overly Permissive Cross-domain Whitelist

Product status

Default status
unaffected

1.9.0 (semver) before 1.9.12
affected

2.0.0 (semver) before 2.0.3
affected

Credits

Surya Narayan Kushwaha (aka Cavid) finder

References

www.dnsdist.org/...owerdns-advisory-for-dnsdist-2026-02.html

cve.org (CVE-2026-0397)

nvd.nist.gov (CVE-2026-0397)

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