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.
CVSS 5.3EPSS 0.27799999999999997%Risk 0.54
View source- Published
- 2026-07-22 14:17:19
- Affected versions
- <=1.25.1
- Type
- Other
- Last modified
- 2026-07-24 13:58:11
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L