# CVE-2026-50045

## Summary

- **CVE ID:** CVE-2026-50045
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-406
- **Published:** Jul 22, 2026
- **Last Modified:** Jul 24, 2026

## 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.

## Affected Products

- NLnet Labs — Unbound (1.22.0)

## References

- [CNA](https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-50045.txt)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.28%
- **EPSS Percentile:** 20.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._