CVE-2026-34197 (GCVE-0-2026-34197)

Vulnerability from cvelistv5 – Published: 2026-04-07 07:50 – Updated: 2026-04-16 18:03
VLAI? CISA KEV
Title
Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeans
Summary
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
Severity ?
No CVSS data available.
CWE
  • CWE-20 - Improper Input Validation
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache ActiveMQ Broker Affected: 0 , < 5.19.4 (semver)
Affected: 6.0.0 , < 6.2.3 (semver)
Create a notification for this product.
    Apache Software Foundation Apache ActiveMQ All Affected: 0 , < 5.19.4 (semver)
Affected: 6.0.0 , < 6.2.3 (semver)
Create a notification for this product.
    Apache Software Foundation Apache ActiveMQ Affected: 0 , < 5.19.4 (semver)
Affected: 6.0.0 , < 6.2.3 (semver)
Create a notification for this product.
Credits
Naveen Sunkavally (Horizon3.ai)
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: b05c8195-f268-47e2-922f-824f89fc55cc

Vulnerability ID: CVE-2026-34197

Status: Confirmed

Status Updated: 2026-04-16 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-04-16
Asserted: 2026-04-16
Scope
Notes: KEV entry: Apache ActiveMQ Improper Input Validation Vulnerability | Affected: Apache / ActiveMQ | Description: Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection. | 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. | Due date: 2026-04-30 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt ; https://nvd.nist.gov/vuln/detail/CVE-2026-34197
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-20 CWE-94
Feed CISA Known Exploited Vulnerabilities Catalog
Product ActiveMQ
Due Date 2026-04-30
Date Added 2026-04-16
Vendorproject Apache
Vulnerabilityname Apache ActiveMQ Improper Input Validation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-04-16 18:00 UTC | Updated: 2026-04-16 18:00 UTC
Show details on NVD website
To clipboard 

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  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.