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Status published
High
CVE-2025-12790
Rubygem-mqtt: rubygem-mqtt hostname validation
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
Affected Vendor
Nicholas J Humfrey
View all reports →Affected Software
ruby-mqtt, Red Hat Satellite 6
Vulnerable Versions:
0
Timeline
Official Publish:
November 6th, 2025
Last Modified:
February 26th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.