Severity: important
Affected versions:
- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) before 5.19.7
- Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before
6.2.6
- Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.7
- Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.6
- Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.7
- Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.6
Description:
Improper Input Validation, Improper Control of Generation of Code ('Code
Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All,
Apache ActiveMQ.
Non-parenthesized discovery wrappers such as `masterslave:vm://...,...`
and `static:vm://...` incorrectly pass validation allowing bypass of fix in
CVE-2026-34197.
Original description from CVE-2026-34197.
Apache ActiveMQ exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ on the web
console. The default Jolokia access policy permits exec operations on all
ActiveMQ MBeans (org.apache.activemq:*), including
BrokerService.addNetworkConnector(String) and
BrokerService.addConnector(String). An authenticated attacker can invoke these
operations with a crafted discovery UR that triggers the VM transport's
brokerConfig parameter to load a remote Spring XML application context using
ResourceXmlApplicationContext. Because Spring's ResourceXmlApplicationContext
instantiates all singleton beans before the BrokerService validates the
configuration, arbitrary code execution occurs on the broker's JVM through bean
factory methods such as Runtime.exec().
This issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before
6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache
ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.
Users are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the
issue.
Credit:
lokerxx (finder)
References:
https://nvd.nist.gov/vuln/detail/CVE-2026-34197
https://activemq.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-45505
