{"id":"CVE-2025-12790","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.","aliases":["GHSA-9c5q-w6gr-fxcq"],"modified":"2026-03-15T22:50:12.541617Z","published":"2025-11-06T21:15:40Z","references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-12790"},{"type":"WEB","url":"https://github.com/njh/ruby-mqtt/blob/main/NEWS.md#ruby-mqtt-version-070-2025-10-29"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2413004"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12790.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}