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.

INFO

Published Date :

2026-03-25T19:43:40.969Z

Last Modified :

2026-03-25T20:08:22.861Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33217 vulnerability.

Vendors Products
Linuxfoundation
  • Nats-server
Nats
  • Nats Server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33217.

URL Resource
https://advisories.nats.io/CVE/secnote-2026-07.txt cve-icon cve-icon cve-icon
https://github.com/nats-io/nats-server/security/advisories/GHSA-jxxm-27vp-c3m5 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-33217 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-33217 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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