CVE-2026-34197: Apache ActiveMQ Improper Input Validation Vulnerability

CISA Known Exploited Vulnerabilities

Name

Apache ActiveMQ Improper Input Validation Vulnerability

Vendor

Apache

Product

ActiveMQ

Added to the catalog

2026-04-16

Due date for US federal agencies

2026-04-30

Weaknesses

CWE-20, CWE-94

Catalog version

2026.10.30

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

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt
• https://nvd.nist.gov/vuln/detail/CVE-2026-34197

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2026-04-07T09:16:20.967

Last modified

2026-10-26T22:10:00.163

Weaknesses

CWE-20, CWE-94, CWE-78

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

• https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt (Vendor Advisory)
• http://www.openwall.com/lists/oss-security/2026/04/06/3 (Mailing List, Third Party Advisory)
• https://access.redhat.com/security/cve/CVE-2026-34197 (Third Party Advisory)
• https://bugzilla.redhat.com/show_bug.cgi?id=2455869 (Third Party Advisory)
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34197.json (Third Party Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34197 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:31.494Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34197

CVE record

Title (CNA)

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeans

Assigner

apache

State

PUBLISHED

Published

2026-04-07T07:50:10.958Z

Updated

2026-08-17T12:05:05.421Z

Problem types

CWE-20 Improper Input Validation; CWE-94 Improper Control of Generation of Code ('Code Injection')

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

• https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt

Read on 2026-11-03T02:19:44.653Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34197.json

GitHub Advisory Database

Also known as / affected packages

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/