{"id":"UBUNTU-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":"2026-04-22T12:31:47.208703Z","published":"2017-09-11T16:29:00Z","upstream":["CVE-2017-7650"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-7650"},{"type":"REPORT","url":"http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-7650"}],"affected":[{"package":{"name":"mosquitto","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@0.15-2ubuntu1.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.15-2ubuntu1.1"}]}],"versions":["0.15-2ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libmosquitto0","binary_version":"0.15-2ubuntu1.1"},{"binary_name":"libmosquittopp0","binary_version":"0.15-2ubuntu1.1"},{"binary_name":"mosquitto","binary_version":"0.15-2ubuntu1.1"},{"binary_name":"mosquitto-clients","binary_version":"0.15-2ubuntu1.1"},{"binary_name":"python-mosquitto","binary_version":"0.15-2ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7650.json"}},{"package":{"name":"mosquitto","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.8-1ubuntu0.16.04.1"}]}],"versions":["1.4.3-1","1.4.4-1","1.4.7-1","1.4.8-1","1.4.8-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libmosquitto1","binary_version":"1.4.8-1ubuntu0.16.04.1"},{"binary_version":"1.4.8-1ubuntu0.16.04.1","binary_name":"libmosquittopp1"},{"binary_name":"mosquitto","binary_version":"1.4.8-1ubuntu0.16.04.1"},{"binary_name":"mosquitto-clients","binary_version":"1.4.8-1ubuntu0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-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"},{"type":"Ubuntu","score":"medium"}]}