CVE-2026-33247
5.3
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability: 1.6 / Impact: 3.6
Source: NVD
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.
Affected (2)
Products: Linuxfoundation: Nats Server
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.11.15 |
Related CWEs
CWE-214
Invocation of Process Using Visible Sensitive Information
A process is invoked with sensitive command-line arguments, environment variables, or other elements that can be seen by other processes on the operating system.
CWE-215
Insertion of Sensitive Information Into Debugging Code
The product inserts sensitive information into debugging code, which could expose this information if the debugging code is not disabled in production.
References (8)
Source: security-advisories@github.com
MitigationVendor Advisory
Source: security-advisories@github.com
MitigationVendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Timeline
No history available yet.