CVE-2026-0397
Description
A flaw was found in the internal webserver of dnsdist and PowerDNS. When the internal webserver is enabled, a remote attacker can exploit a misconfiguration in the Cross-Origin Resource Sharing (CORS) policy. By tricking an administrator logged into the dashboard into visiting a malicious website, the attacker could extract sensitive information about the running configuration, leading to information disclosure.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Access Control,Other
Technical Impact: Gain Privileges or Assume Identity; Varies by Context
An attacker can access any functionality that is inadvertently accessible to the source.
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