CVE-2025-12790

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Source
https://cve.org/CVERecord?id=CVE-2025-12790
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12790.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-12790
Aliases
Published
2025-11-06T21:07:34.970Z
Modified
2026-07-08T07:31:53.965359809Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Rubygem-mqtt: rubygem-mqtt hostname validation
Details

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.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-29"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12790.json"
}
References

Affected packages

Git / github.com/njh/ruby-mqtt

Affected ranges

Type
GIT
Repo
https://github.com/njh/ruby-mqtt
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f99f2c9dcd4f388d4313c9fccbb6eb288701dee7
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.7.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.0.5
v0.0.6
v0.0.7
v0.0.8
v0.0.9
v0.1.0
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.5.0
v0.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12790.json"