Code Injection in ActiveMQ - CVE-2026-40466
Published: April 28, 2026
Vulnerability identifier: #VU128312
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40466
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper input validation and code injection in BrokerView.addNetworkConnector and BrokerView.addConnector through Jolokia when adding a connector using an HTTP discovery transport. A remote user can add a connector that causes a malicious HTTP endpoint to return a VM transport and load a remote Spring XML application context to execute arbitrary code.
Exploitation requires the activemq-http module to be on the classpath.
Affected software
ActiveMQ
IBM Sterling Control Center
openEuler
activemq
activemq-javadoc
IBM Sterling Control Center
openEuler
activemq
activemq-javadoc
How to mitigate CVE-2026-40466
Install security update from vendor's website.
ActiveMQ - addressed in versions 5.19.6, 6.2.5
IBM Sterling Control Center - addressed in versions 6.3.1.0.9, 6.4.1.0.3, 6.4.2.0.4
activemq - update to 5.19.6-1
activemq-javadoc - update to 5.19.6-1
IBM Sterling Control Center - addressed in versions 6.3.1.0.9, 6.4.1.0.3, 6.4.2.0.4
activemq - update to 5.19.6-1
activemq-javadoc - update to 5.19.6-1