IBM WebSphere MQ 8.0 and 9.0 could allow an authenticated user to cause a denial of service to the MQXR channel when trace is enabled. IBM X-Force ID: 121155.

IBM WebSphere MQ 8.0 could allow an authenticated user with authority to create a cluster object to cause a denial of service to MQ clustering. IBM Reference #: 1998647.

IBM WebSphere MQ 8.0 could allow an authenticated user with access to the queue manager to bring down MQ channels using specially crafted HTTP requests. IBM Reference #: 1998648.

IBM WebSphere MQ 8.0 could allow an authenticated user with access to the queue manager and queue, to deny service to other channels running under the same process. IBM Reference #: 1998649.

IBM WebSphere MQ 7.0.1 before 7.0.1.13, 7.1 before 7.1.0.6, 7.5 before 7.5.0.5, and 8 before 8.0.0.1 allows remote authenticated users to cause a denial of service (queue-slot exhaustion) by leveraging PCF query privileges for a crafted query.

IBM WebSphere MQ classes for Java libraries 8.0 before 8.0.0.1 and Websphere MQ Explorer 7.5 before 7.5.0.5 and 8.0 before 8.0.0.2 allow local users to discover preconfigured cleartext passwords via an unspecified trace operation.

IBM WebSphere MQ 8.x before 8.0.0.1 does not properly enforce CHLAUTH rules for blocking client connections in certain circumstances related to the CONNAUTH attribute, which allows remote authenticated users to bypass intended queue-manager access restrictions via unspecified vectors.