CVE-2026-34197Known exploitationNetwork attack vector

Authenticated code execution via remote Spring XML loading

Published Apr 7, 2026 · Updated Apr 7, 2026

Code injection in Apache ActiveMQ Classic before 5.19.4 and 6.0.0 through 6.2.2 allows remote authenticated users to execute JVM code. BrokerService.addNetworkConnector(String) and addConnector(String) accept a crafted discovery URI whose brokerConfig loads a remote ResourceXmlApplicationContext and instantiates singleton beans before validation. Access to the authenticated Jolokia web console is required, and a bean factory method such as Runtime.exec() runs with the broker JVM's privileges.

CVSS severity8.8
High
EPSS probability98.26%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Apache ActiveMQ Classic before 5.19.4 and 6.0.0 through 6.2.2 allows remote authenticated users to execute JVM code. BrokerService.addNetworkConnector(String) and addConnector(String) accept a crafted discovery URI whose brokerConfig loads a remote ResourceXmlApplicationContext and instantiates singleton beans before validation. Access to the authenticated Jolokia web console is required, and a bean factory method such as Runtime.exec() runs with the broker JVM's privileges.

The record

CVE
CVE-2026-34197
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
The Apache Software Foundation
Product
Apache ActiveMQ Broker
Classifications
CWE-94, CWE-20, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2026Record updatedLatest update available in the CVE record.
  3. Apr 16, 2026Exploitation reportedCISA Known Exploited Vulnerabilities Catalog entry

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.19.4
  2. Affected versionversion=6.0.0 <6.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache ActiveMQ Brokerversion=0 <5.19.4; version=6.0.0 <6.2.3
The Apache Software Foundation · Apache ActiveMQversion=0 <5.19.4; version=6.0.0 <6.2.3

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8redhat-SADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-20Improper Input Validation
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Reported exploitation

Technologies

Your stack

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Your stack

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