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CVE-2026-33217

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CVSS 3.1
6.5 medium
EPSS
<1%p18
Published
()
Modified
Description

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.

Vendors
linuxfoundation
Products
nats-server
Weakness
CWE-863, CWE-425
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news

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