CVEvulnerability

CVE-2026-33356

7.7 HIGH Published 2026-05-11 Modified 2026-10-26 Official page ↗
Status
Deferred
Published
2026-05-11
Last modified
2026-10-26
Assigner
44488dab-36db-4358-99f9-bc116477f914
CVSS 3.1 (44488dab-36db-4358-99f9-bc116477f914)
7.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weaknesses
CWE-639

Description

In Meari IoT Cloud MQTT Broker deployments running EMQX 4.x, any authenticated low-privilege account can subscribe to global wildcard topics and receive telemetry from devices the user does not own. The broker enforces publish restrictions but does not enforce equivalent subscribe authorization at per-device scope.

Related

Weakness · CWE (1)

  • CWE-639 Authorization Bypass Through User-Controlled Key weakness

References