{"id":"CVE-2017-7650","details":"In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.","modified":"2026-04-10T04:02:08.132590Z","published":"2017-09-11T16:29:00.260Z","related":["openSUSE-SU-2024:11057-1"],"references":[{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3865"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/98741"},{"type":"FIX","url":"http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/"},{"type":"EVIDENCE","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse/mosquitto","events":[{"introduced":"0"},{"fixed":"de5ff2826555f9c4a3b5c776cf716b27feff3af5"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.4.12"}]}}],"versions":["v1.4.1","v1.4.10","v1.4.11","v1.4.2","v1.4.3","v1.4.4","v1.4.5","v1.4.6","v1.4.7","v1.4.8","v1.4.9"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7650.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}