Description: In Apache ActiveMQ Artemis prior to 2.20.0 or 2.19.1, an attacker could partially disrupt availability (DoS) through uncontrolled resource consumption of memory.
This issue is being tracked as: https://issues.apache.org/jira/browse/ARTEMIS-3593 Mitigation: Upgrade to Apache ActiveMQ Artemis 2.20.0 or 2.19.1 (if you're still using Java 8).
