CVE-2026-39304

Summary: CVE-2026-39304 describes a DoS via Out-of-Memory in Apache ActiveMQ components caused by TLSv1.3 KeyUpdate handling in NIO SSL transports. The broker and clients are affected for multiple versions prior to 6.2.4 or 5.19.4, with the recommended fixes being 6.2.4 or 5.19.5. The issue arise...

CVE-2026-50750

CVE-2026-50750 describes a pre-authentication Denial of Service in Apache ActiveMQ components where an unauthenticated attacker can flood BrokerInfo messages without a ConnectionInfo, causing an Out of Memory condition and broker crash. Affected ranges include Apache ActiveMQ Broker: 5.19.7 befor...

CVE-2026-53917

CVE-2026-53917 describes an unbounded memory allocation vulnerability in OpenWire property unmarshalling in Apache ActiveMQ and related builds. An authenticated user can send a crafted OpenWire Message with a very large encoded size value for a message property map, causing OpenWire maps to be un...

CVE-2026-54475

Summary of CVE-2026-54475 : A missing authorization check allows unauthorized connections to access temporary destinations in Apache ActiveMQ components. Affected versions include Apache ActiveMQ Broker prior to 5.19.8 and 6.0.0–6.2.6, Apache ActiveMQ All prior to 5.19.8 and 6.0.0–6.2.6, and Apac...

CVE-2026-49434

CVE-2026-49434 is an Improper Input Validation vulnerability affecting Apache ActiveMQ Broker, ActiveMQ, and ActiveMQ All. An attacker with permission to publish/modify LDAP entries (matching configured searchBase/searchFilter) can instantiate denied transports inside the broker JVM, enabling ret...