CVE-2026-42389: This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.

PriorityP427medium5.3CVSS 3.1

AVNACLPRNUINSUCNILAN

EPSS

0.18%

7.2th percentile

This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
powerdns	recursor	>= 5.4.0 < 5.4.3	5.4.3

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