What’s Vulnerable › Vulnerabilities
CVE-2026-33609: LDAP DN injection
- Severity: medium (CVSS 6.5 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: 2026-04-22 · updated 2026-10-26
- Weakness: CWE-90
Description
Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.
Affected products
- PowerDNS Authoritative: from 4.9.0 before 4.9.14; from 5.0.0 before 5.0.4 — fixed in 4.9.14, 5.0.4
How to fix
Upgrade to a fixed version: PowerDNS Authoritative 4.9.14, 5.0.4. Check the vendor advisory for mitigations.
References
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