CVE-2026-34197
HighExploitedPublic exploitAuthenticated Apache ActiveMQ Broker and Apache ActiveMQ users could perform RCE via Jolokia MBeans
Published Apr 7, 2026 · Updated Oct 8, 2026 · Also known as BIT-activemq-2026-34197, DEBIAN-CVE-2026-34197, GHSA-rxpj-7qvf-xv32, ROOT-APP-MAVEN-CVE-2026-34197, ROOT-OS-DEBIAN-11-CVE-2026-34197, ROOT-OS-DEBIAN-12-CVE-2026-34197, ROOT-OS-DEBIAN-13-CVE-2026-34197, UBUNTU-CVE-2026-34197
Key Facts
Patch immediately- CVE-2026-34197 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Activemq (Apache), Activemq Broker (Apache), apache-activemq-6.2 (chainguard) and 10 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 13, 2026. Public exploit code is available.
- EPSS estimates a 15% probability of exploitation in the next 30 days.
- Fixed versions are available, including Activemq 5.16.1-1+deb11u2.aikido.2, Activemq 5.16.1-1+deb11u2.root.io.1, Activemq 5.17.2+dfsg-2+deb12u1.aikido.2.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
15%
Higher than 96.7% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-34197 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Apr 16, 2026 | Apr 30, 2026 | Not reported |
| Industry KEV feed | Apr 13, 2026 | Apr 30, 2026 | Not reported |
| CIRCL KEV | Apr 16, 2026 | Apr 30, 2026 | Not reported |
| ENISA EUVD | Apr 16, 2026 | n/a | Not reported |
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.
Affected Products
46 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ActivemqApache | See advisory | 5.19.4 |
| Activemq BrokerApache | See advisory | 5.19.4 |
| apache-activemq-6.2chainguard | See advisory | 6.2.4-r0 |
| apache-activemq-fips-6.2chainguard | See advisory | 6.2.4-r0 |
| geoserver-2.27chainguard | See advisory | 2.27.5-r3 |
Patched Releases
Activemq
5.16.1-1+deb11u2.aikido.2, 5.16.1-1+deb11u2.root.io.1, 5.17.2+dfsg-2+deb12u1.aikido.2, 5.17.2+dfsg-2+deb12u1.root.io.1, 5.17.6+dfsg-2.aikido.2, 5.17.6+dfsg-2.root.io.1, 5.19.4, 6.2.3
Activemq Broker
5.19.4, 6.2.3
apache-activemq-6.2
6.2.4-r0, 6.2.8-r0
apache-activemq-6.2-fips
6.2.8-r0
apache-activemq-fips-6.2
6.2.4-r0
geoserver-2.27
2.27.5-r3
geoserver-2.28
2.28.3-r1
io.root.org.apache.activemq:activemq-all
6.1.3-root.io.3, 6.1.3-root.io.4, 6.1.3-root.io.5, 6.1.3-root.io.6, 6.1.3-root.io.7, 6.1.3-root.io.8, 6.1.8-root.io.2, 6.1.8-root.io.3, 6.1.8-root.io.4
io.root.org.apache.activemq:activemq-broker
5.17.1-root.io.1, 5.17.1-root.io.2, 5.17.3-root.io.1, 5.17.3-root.io.2, 5.18.3-root.io.10, 5.18.3-root.io.11, 5.18.3-root.io.12, 5.18.3-root.io.7, 5.18.3-root.io.8, 5.18.3-root.io.9, 6.0.1-root.io.1, 6.0.1-root.io.2, 6.1.3-root.io.4, 6.1.3-root.io.5, 6.1.3-root.io.6, 6.1.3-root.io.7, 6.1.3-root.io.8, 6.1.6-root.io.1, 6.1.6-root.io.2, 6.1.8-root.io.1, 6.1.8-root.io.2, 6.1.8-root.io.3, 6.1.8-root.io.4, 6.2.0-root.io.1, 6.2.0-root.io.2
org.apache.activemq:activemq-all
5.19.4, 5.19.5, 6.1.3-aikido.5, 6.1.3-aikido.6, 6.1.3-aikido.7, 6.1.3-aikido.8, 6.1.8-aikido.2, 6.1.8-aikido.3, 6.1.8-aikido.4, 6.2.3
org.apache.activemq:activemq-broker
5.17.1-aikido.2, 5.17.3-aikido.2, 5.18.3-aikido.10, 5.18.3-aikido.11, 5.18.3-aikido.12, 5.19.4, 5.19.5, 6.0.1-aikido.2, 6.1.3-aikido.5, 6.1.3-aikido.6, 6.1.3-aikido.7, 6.1.3-aikido.8, 6.1.6-aikido.2, 6.1.8-aikido.1, 6.1.8-aikido.2, 6.1.8-aikido.3, 6.1.8-aikido.4, 6.2.0-aikido.2, 6.2.3
org.apache.activemq:apache-activemq
5.19.4, 6.2.3
rootio-activemq
5.16.1-1+deb11u2.aikido.2, 5.16.1-1+deb11u2.root.io.1, 5.17.2+dfsg-2+deb12u1.aikido.2, 5.17.2+dfsg-2+deb12u1.root.io.1, 5.17.6+dfsg-2.aikido.2, 5.17.6+dfsg-2.root.io.1
Timeline
Publicly disclosed
Apr 7, 2026
Added to Industry KEV feed
Apr 13, 2026
Added to CISA KEV
Apr 16, 2026
Added to CIRCL KEV
Apr 16, 2026
Added to ENISA EUVD
Apr 16, 2026
Last updated
Oct 8, 2026
Weakness Type
- CWE-20 Improper Input Validation
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisoryhttps://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34197.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-34197
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2026-34197
FAQ
Common Questions.
Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ.
Affected: Activemq (Apache); Activemq Broker (Apache); apache-activemq-6.2 (chainguard), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 13, 2026.
Yes. It was added on Apr 16, 2026 with a federal remediation due date of Apr 30, 2026.
Public exploit code is available.
Fixed versions are available, including Activemq 5.16.1-1+deb11u2.aikido.2, Activemq 5.16.1-1+deb11u2.root.io.1, Activemq 5.17.2+dfsg-2+deb12u1.aikido.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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