CVE-2026-42588
HIGHApache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Remote Code Execution via Jolokia addNetworkConnector
Title source: cnaExploitation Summary
EIP tracks 3 public exploits for CVE-2026-42588. PoCs published by hnytgl, strivepan, gentleman567.
AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-42588, targeting Apache ActiveMQ's Jolokia interface to achieve remote code execution via crafted Spring XML payloads. The exploit includes detection, payload generation, and execution capabilities.
Description
Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, 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). An authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the "masterslave:// " URL which can allow loading a 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.
Exploits (3)
This repository contains a functional exploit for CVE-2026-42588, targeting Apache ActiveMQ's Jolokia interface to achieve remote code execution via crafted Spring XML payloads. The exploit includes detection, payload generation, and execution capabilities.
The repository claims to be a GUI scanner/exploit for CVE-2026-42588 but lacks actual exploit code, instead providing vague instructions for VPS setup and DNSLog verification. No technical details about the vulnerability or exploit mechanics are included.
This PoC exploits a Spring Framework vulnerability (CVE-2026-42588) by leveraging MethodInvokingFactoryBean to execute arbitrary commands via Runtime.exec(). The XML configuration demonstrates a direct path to RCE by invoking 'touch /tmp/activemq_pwned'.
References (2)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N