CVE-2026-34197
Apache Software Foundation Apache ActiveMQ Broker, Apache Software Foundation Apache ActiveMQ All, Apache Software Foundation Apache ActiveMQ
Published 7 Apr 2026 · updated 4 Aug 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 16 Apr 2026, with a remediation deadline of 30 Apr 2026 for US federal agencies.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
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 All: before 5.19.4, from 6.0.0 before 6.2.3; Apache ActiveMQ: before 5.19.4, from 6.0.0 before 6.2.3. Users are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue
References
- activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt · Vendor Advisory
- www.openwall.com/lists/oss-security/2026/04/06/3 · Mailing List, Third Party Advisory
- access.redhat.com/security/cve/CVE-2026-34197 · Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2455869 · Third Party Advisory
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34197.json · Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34197 · US Government Resource