CVE-2026-49186 – Lack of MQTT Broker Topic Access Control Lists

CVE ID :CVE-2026-49186

Published : June 4, 2026, 4:17 a.m. | 15 minutes ago

Description :The local MQTT broker does not enforce topic-level Access Control Lists (ACLs). This allows any client to subscribe using wildcard characters (# or +) to enumerate hidden network devices or publish rogue control commands.

Severity: 8.6 | HIGH

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