What’s Vulnerable › Vulnerabilities
CVE-2026-0397: Information disclosure via CORS misconfiguration
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-31 · updated 2026-07-25
- Weakness: CWE-942
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.
Affected products
- PowerDNS DNSdist: from 1.9.0 before 1.9.12; from 2.0.0 before 2.0.3 — fixed in 1.9.12, 2.0.3
How to fix
Upgrade to a fixed version: PowerDNS DNSdist 1.9.12, 2.0.3. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-0397 or the next vulnerability affects your stack