Vulnerability in Powerdns Authoritative

CVE-2026-33609

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

EPSS: 0.000 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Powerdns Authoritative — versions 5.0.0, 4.9.0

References

docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-…

Frequently asked questions

What is CVE-2026-33609?: CVE-2026-33609 is a medium-severity vulnerability in Powerdns Authoritative. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-33609?: Medium severity. CVSS v3 base score is 5.3 out of 10.