CVEvulnerability

CVE-2026-33216

7.5 HIGH Published 2026-03-25 Modified 2026-09-09 Official page ↗
Status
Modified
Published
2026-03-25
Last modified
2026-09-09
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weaknesses
CWE-213, CWE-256

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, for MQTT deployments using usercodes/passwords: MQTT passwords are incorrectly classified as a non-authenticating identity statement (JWT) and exposed via monitoring endpoints. Versions 2.11.14 and 2.12.6 contain a fix. As a workaround, ensure monitoring end-points are adequately secured. Best practice remains to not expose the monitoring endpoint to the Internet or other untrusted network users.

Affected configurations

• linuxfoundation nats-server (< 2.11.15) • linuxfoundation nats-server (>= 2.12.0 < 2.12.6)

Related

Weakness · CWE (2)

  • CWE-213 Exposure of Sensitive Information Due to Incompatible Policies weakness
  • CWE-256 Plaintext Storage of a Password weakness

References