Security Advisory
CVE-2026-50045
5.3
MEDIUM
Vulnerability Description
In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a single client query for a deeply nested name under a DNSSEC-signed parent can cause Unbound to send more upstream packets per client query than the configured 'max-global-quota'. This effectively bypasses a security configuration that limits upstream amplification traffic.
Published Date
July 22, 2026
Official Source
NIST NVD Advisory