CVE-2026-42389

Reject more queries with invalid header values PUBLISHED

Description (CNA)

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

Vendor / product	Versions
PowerDNS / Recursor	affected 5.4.0 before 5.4.3

No CWE identifiers supplied.

CISA-ADP

No English description supplied.

No references supplied.