RCE in Apache Activemq
CVE-2026-42588
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/joloki…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.001 (17.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Apache Activemq
- Apache Activemq_broker
- Apache Software Foundation Activemq — versions 0, 6.0.0
- Apache Software Foundation Activemq All — versions 0, 6.0.0
- Apache Software Foundation Activemq Broker — versions 0, 6.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-42588?
- CVE-2026-42588 is a high-severity vulnerability in Apache Activemq, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2026-06-01.
- How severe is CVE-2026-42588?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2026-42588 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.