CVE-2026-33217
EUVD-2026-1596625.03.2026, 20:16
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using ACLs on message subjects, these ACLs were not applied in the `$MQTT.>` namespace, allowing MQTT clients to bypass ACL checks for MQTT subjects. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| linuxfoundation | nats-server | 𝑥 < 2.11.15 |
| linuxfoundation | nats-server | 2.12.0 ≤ 𝑥 < 2.12.6 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.5.4 | 1778867753 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat multicluster global hub 1.4.4 | 1779579439 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat multicluster global hub 1.6.0 | 1780167118 ≤ 𝑥 < * | ADP |
Debian Releases
Ubuntu Releases
Common Weakness Enumeration
- CWE-863 - Incorrect AuthorizationThe software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
- CWE-425 - Direct Request ('Forced Browsing')The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.
References