Detections
Analytics

Apache ActiveMQ < 5.19.6 / 6.x < 6.2.5 Multiple Vulnerabilities

high Nessus Plugin ID 311265

Synopsis

The remote host is running a web application that is affected by multiple vulnerabilities.

Description

The version of Apache ActiveMQ running on the remote host is prior to 5.19.6 or 6.x prior to 6.2.5. It is, therefore, affected by multiple vulnerabilities:

 - An authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport via BrokerView.addNetworkConnector or BrokerView.addConnector through Jolokia if the activemq-http module is on the classpath. A malicious HTTP endpoint can return a VM transport through the HTTP URI which will bypass the validation added in CVE-2026-34197. The attacker can then use 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().
 (CVE-2026-40466)

 - An authenticated attacker can use the admin web console page to construct a malicious broker name that bypasses name validation to include an xbean binding that can be later used by a VM transport to load a remote Spring XML application. The attacker can then use the DestinationView mbean to send a message to trigger a VM transport creation that will reference this malicious broker name which can lead to loading the malicious Spring XML context file. 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(). (CVE-2026-41044)

 - An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. (CVE-2026-41043)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Apache ActiveMQ version 5.19.6, 6.2.5, or later.

See Also

http://www.nessus.org/u?dbca3594

http://www.nessus.org/u?722a0a63

http://www.nessus.org/u?b66296df

Plugin Details

Severity: High

ID: 311265

File Name: activemq_6_2_5.nasl

Version: 1.2

Type: Combined

Agent: unix

Family: CGI abuses

Published: 4/30/2026

Updated: 5/1/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-40466

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-41044

Vulnerability Information

CPE: cpe:/a:apache:activemq

Required KB Items: installed_sw/Apache ActiveMQ

Exploit Ease: No known exploits are available

Patch Publication Date: 4/24/2026

Vulnerability Publication Date: 4/24/2026

Reference Information

CVE: CVE-2026-40466, CVE-2026-41043, CVE-2026-41044