CVE-2025-12790 – Rubygem-mqtt: rubygem-mqtt hostname validation

CVE ID : CVE-2025-12790

Published : Nov. 6, 2025, 9:07 p.m. | 22 minutes ago

Description : A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.

Severity: 7.4 | HIGH

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