View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2018-20145 medium priority: Ubuntu including 1 source packages (mosquitto), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): not-affected 4, released 1.
Eclipse Mosquitto 1.5.x before 1.5.5 allows ACL bypass: if the option per_listener_settings was set to true, and the default listener was in use, and the default listener specified an acl_file, then the acl file was being ignored.