CVE-2026-50045
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NLnet Labs | Unbound | 1.22.0 < 1.25.2 | affected |
Weaknesses
- CWE-406: CWE-406: Insufficient Control of Network Message Volume (Network Amplification)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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