All vulnerabilities
CVE-2026-34197

Apache ActiveMQ Improper Input Validation Vulnerability

Apache ActiveMQ
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 16 Apr 2026CISA KEV
Exploit odds (EPSS)15.5%Chance of exploitation activity in the next 30 days, higher than 96% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.19.4Also 6.2.3CVE List
Federal deadline30 Apr 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 7 Apr 2026, 07:50 UTCPublishedCVE List
  2. 16 Apr 2026Added to CISA KEVCISA KEV
  3. 29 Apr 2026Exploit code publicMetasploit

Public exploit code and templates 2

  • Exploit moduleApache ActiveMQ RCE via Jolokia addNetworkConnector 29 Apr 2026Metasploit
  • Scanner templateApache ActiveMQ - Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.

Text from CVE List

Affected versions 6

  • Apache ActiveMQ Brokeraffected: all versions before 5.19.4CVE List
  • Apache ActiveMQ Brokeraffected: 6.0.0 before 6.2.3CVE List
  • Apache ActiveMQ Allaffected: all versions before 5.19.4CVE List
  • Apache ActiveMQ Allaffected: 6.0.0 before 6.2.3CVE List
  • Apache ActiveMQaffected: all versions before 5.19.4CVE List
  • Apache ActiveMQaffected: 6.0.0 before 6.2.3CVE List

References 6