CVE-2026-50045

CVSS Score & Metrics

Base Score

5.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L                                    

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.

Vulnerability Details

Published Date

July 22, 2026

Last Modified

July 22, 2026

CWE ID

CWE-406

Source

NVD

Vendor

NLnet Labs

Product

Unbound

External References

https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-50045.txt

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

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