The "EventManager" module in "pyload" manages a list of "Client" instances for subscribing to events. The addition of each unique "uuid" from the "get_events" API causes the creation of a "Client" instance that gets appended to the "clients" list. Although there is a "clean()" method available in the "EventManager" module for removing non-responding "Client" instances, this method is never used in the "EventManager" or in the entire core application code. Consequently, this causes an uncontrolled growth in memory consumption until it becomes exhausted, resulting in a DoS attack.