CVE-2026-33216: NATS has MQTT plaintext password disclosure

Overview

Severity

High (CVSS 8.6)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Mar

Released

2026-04-02

EPSS Score

0.04% (percentile: 13.4%)

Affected Products (2)

Other

• 21126-17086
• 21127-17084

Revision History

• 2026-04-02: Information published.