Unprotected storage of credentials in nats-server - CVE-2026-33216
Published: April 22, 2026
Vulnerability identifier: #VU126865
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-33216
CWE-ID: CWE-256
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: NATS - The Cloud Native Messaging System
Affected software:
nats-server
nats-server
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to other users' credentials.
The vulnerability exists due to application stored credentials in plain text within MQTT. A remote attacker can gain access to sensitive information on the system.
How to mitigate CVE-2026-33216
Install updates from vendor's website.