CVE-2026-42389 — Reject more queries with invalid header values

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

Published: 2026-06-25 · CVSS: 5.3 · CVSS 3.1

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

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7