Bug 2455869 (CVE-2026-34197)

Summary: CVE-2026-34197 org.apache.activemq/activemq-broker: org.apache.activemq/activemq-all: Apache ActiveMQ: RCE via crafted discovery URI in Jolokia JMX-HTTP bridge
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: asoldano, ataylor, bbaranow, bmaxwell, bstansbe, dbruscin, dlofthou, gmalinko, istudens, ivassile, iweiss, janstey, kvanderr, mosmerov, msvehla, nwallace, pberan, pdelbell, pesilva, pjindal, pmackay, rstancel, rstepani, smaestri, thjenkin, vdosoudi
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Apache ActiveMQ Broker and Apache ActiveMQ. An authenticated attacker can exploit this vulnerability by sending a specially crafted discovery Uniform Resource Identifier (URI) to the Jolokia JMX-HTTP bridge, which is exposed on the web console. This allows the attacker to bypass configuration validation and load a remote Spring XML application context. Consequently, this leads to arbitrary code execution on the broker's Java Virtual Machine (JVM).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2456131    
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Description OSIDB Bzimport 2026-04-07 09:01:32 UTC
Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ.

Apache ActiveMQ Classic 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 URI 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 5.19.4, from 6.0.0 before 6.2.3; Apache ActiveMQ: .

Users are recommended to upgrade to version 5.19.5 or 6.2.3, which fixes the issue.