BIT-ACTIVEMQ-2026-53917 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker: Unbounded memory allocation in OpenWire property unmarshalling

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message...

CVE-2026-53917

A Memory Allocation with Excessive Size Value vulnerability (CWE-789) exists in Apache ActiveMQ , Apache ActiveMQ All , Apache ActiveMQ Client , and Apache ActiveMQ Broker . An authenticated user can trigger a Denial of Service (DoS) by sending a crafted OpenWire Message containing a large encode...