PULSE
LIVE22signals / 24h
ES
FEED
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CVE WatchJul 22, 2026

CVE-2026-50045

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 cau

CVSS

5.3

Medium

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Jul 22, 2026 · Last modified: Jul 22, 2026 · CWE-406

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references
Related CVEs

No related CVEs by CWE or product.