CVE-2026-33609

LDAP DN injection

State: Published
Severity: 5.3 Medium
Published: Apr 22, 2026
Updated: Apr 22, 2026
Reserved: Mar 23, 2026

Description

Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N	OX

Weaknesses

CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Affected Products

Product	Versions
AuthoritativePowerDNS	5.0.0 to before 5.0.4Affected 4.9.0 to before 4.9.14Affected

References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html

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