Apache Software Foundation Apache Activemq Client vulnerabilities

2 known vulnerabilities affecting apache_software_foundation/apache_activemq_client.

Total CVEs

2

CISA KEV

0

Public exploits

0

Exploited in wild

0

Severity breakdown

HIGH1MEDIUM1

Vulnerabilities

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CVE-2026-39304HIGHCVSS 7.5fixed in 5.19.4≥ 6.0.0, < 6.2.42026-04-10

CVE-2026-39304 [HIGH] CWE-400 CVE-2026-39304: Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes the broker to exhaust all its memory in the SSL engine

CVE-2026-33227MEDIUMCVSS 4.3fixed in 5.19.3≥ 6.0.0, < 6.2.22026-04-07

CVE-2026-33227 [MEDIUM] CWE-22 CVE-2026-33227: Improper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Cli Improper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ. In two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided "key" value could be constructed to t