'max-global-quota' reset by DNSSEC validation restarts (NLnet Labs Unbound)
En bref
- Source
- NVD
- EPSS
- EPSS 0.46 % · centile 40 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- NLnet Labs
- Statut NVD
- Analyzed
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.
Faiblesses (CWE)
- CWE-406 — Insufficient Control of Network Message Volume (Network Amplification)
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NLnet Labs |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · sep@nlnetlabs.nl (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-47671
- GCVE · GCVE-0-2026-50045
Configurations affectées (CPE NVD)
cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*≥ 1.22.0 < 1.25.2
Produits affectés
| Produit | Versions |
|---|---|
| NLnet Labs · Unbound | affected 1.22.0 < 1.25.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |