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, if a nats-server is run with static credentials for all clients provided via argv (the command-line), then those credentials are visible to any user who can see the monitoring port, if that too is enabled. The `/debug/vars` end-point contains an unredacted copy of argv. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, configure credentials inside a configuration file instead of via argv, and do not enable the monitoring port if using secrets in argv. Best practice remains to not expose the monitoring port to the Internet, or to untrusted network sources.

INFO

Published Date :

2026-03-25T20:02:18.868Z

Last Modified :

2026-03-26T19:52:12.479Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33247 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-2026-33247.

URL Resource
https://advisories.nats.io/CVE/secnote-2026-14.txt cve-icon cve-icon cve-icon
https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-33247 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-33247 cve-icon
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CVSS Vulnerability Scoring System

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