VDB
DEBIAN-CVE-2026-33217
DEBIAN-CVE-2026-33217
PUBLISHED
CVSS 6.5 MEDIUM
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.
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | nats-server | 0, 2.10.27-1, 2.12.4-1 |
| Debian:13 | nats-server | 2.12.4-1, 0, 2.12.6-1 |
| Debian:12 | nats-server | 2.10.1-1, 2.10.16-1, 2.10.18-1 |
Timeline
- Mar 25, 2026 CVE Published
- Apr 28, 2026 CVE Updated