`CVE-2026-34197`

Affected software	2 products, listed below
Severity	8.8 High CVSS 3.1 2 scores
Fixed in	`5.19.5`, `6.2.3`
Weakness	Code injection (CWE-94)
Published	7 Apr 2026
Updated	26 Oct 2026

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

CWE-20 · Improper input validationCWE-78 · OS command injection

Exploitation status

Exploited

Confirmed real-world exploitation.

CISA KEV listed Confirmed exploitation in the wild. Added 2026-04-16 · remediation due 2026-04-30 · ransomware use: unknown
VulnCheck KEV listed Exploitation reported in the wild. 3 citations · honeypot sightings · 12 exploits · earliest 2026-04-13.
CISA Vulnrichment exploitation: active CISA records active exploitation. Automatable: no, technical impact: total.
Indexed PoC 13 indexed Published artifacts you can open, in GitHub PoC, Metasploit, Nuclei; first seen 2026-04-08.
EPSS 98% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.9% of all scored CVEs.

VulnCheck KEV

Exploitation evidence from VulnCheck Known Exploited Vulnerabilities (VulnCheck KEV), used under VulnCheck's community terms. View CVE-2026-34197 in VulnCheck (free account), which lists 7 more exploit references not shown here.

Evidence	Source	Detail	Date
Honeypot sighting	Shadowserver honeypots	Exploitation attempts seen on 107 days	2026-04-24 to 2026-11-12
Honeypot sighting	VulnCheck canaries	Exploitation attempts seen on 101 days	2026-04-21 to 2026-11-09
Reported exploitation	fortiguard.com	/encyclopedia/ips/60672	2026-04-13
Reported exploitation	cisa.gov	/sites/default/files/feeds/known_exploited_vulnerabilities.json	2026-04-16
Reported exploitation	teamt5.org	/en/posts/alert-exploitation-of-cve-2026-34197-in-apache-active-mq	2026-06-10
Exploit reference	VulnCheck XDB 3db05bddb604	Exploit type: remote-with-credentials	2026-04-08
Exploit reference	VulnCheck XDB 52fc401b4422	Exploit type: remote-with-credentials	2026-04-08
Exploit reference	VulnCheck XDB f57a244efa6a	Exploit type: remote-with-credentials	2026-04-09
Exploit reference	VulnCheck XDB 971f55b2135a	Exploit type: initial-access	2026-04-20
Exploit reference	VulnCheck XDB a5dc5f220708	Exploit type: remote-with-credentials	2026-05-18

Evidence

Source

Detail

Date

Honeypot sighting

Shadowserver honeypots

Exploitation attempts seen on 107 days

2026-04-24 to 2026-11-12

Honeypot sighting

VulnCheck canaries

Exploitation attempts seen on 101 days

2026-04-21 to 2026-11-09

Reported exploitation

fortiguard.com

/encyclopedia/ips/60672

2026-04-13

Reported exploitation

cisa.gov

/sites/default/files/feeds/known_exploited_vulnerabilities.json

2026-04-16

Reported exploitation

teamt5.org

/en/posts/alert-exploitation-of-cve-2026-34197-in-apache-active-mq

2026-06-10

Exploit reference

VulnCheck XDB 3db05bddb604

Exploit type: remote-with-credentials

2026-04-08

Exploit reference

VulnCheck XDB 52fc401b4422

Exploit type: remote-with-credentials

2026-04-08

Exploit reference

VulnCheck XDB f57a244efa6a

Exploit type: remote-with-credentials

2026-04-09

Exploit reference

VulnCheck XDB 971f55b2135a

Exploit type: initial-access

2026-04-20

Exploit reference

VulnCheck XDB a5dc5f220708

Exploit type: remote-with-credentials

2026-05-18

5 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

Index	Artifact	Stars	First seen
GitHub PoC	Apache ActiveMQ漏洞综合利用工具(CVE-2015-5254，CVE-2016-3088，CVE-2022-41678，CVE-2023-46604，CVE-2024-32114，CVE-2026-34197，CVE-2026-40466， CVE-2026-42588)	86	2026-04-20
Nuclei	Apache ActiveMQ - Remote Code Execution
Metasploit	Apache ActiveMQ RCE via Jolokia addNetworkConnector (excellent rank)
GitHub PoC	Apache ActiveMQ Classic RCE research: CVE-2026-34197 / CVE-2026-42588 bypass chain + hardened-6.2.6 audit findings + Crowdfense comparison	9	2026-07-04
GitHub PoC	CVE-2026-34197 activemq PoC	8	2026-04-08
GitHub PoC	CVE-2026-34197 - Apache ActiveMQ RCE via Jolokia Endpoint PoC	4	2026-04-08
GitHub PoC	CVE-2026-34197: Apache ActiveMQ Classic RCE via Jolokia API (CVSS 8.8). Python & Nmap NSE detection scripts. A 13-year-old vulnerability allows remote code execution through the addNetworkConnector MBean operation. Unauthenticated on versions 6.0.0 to 6.1.1. Fixed in 5.19.4 and 6.2.3.	2	2026-04-14
GitHub PoC	CVE-2026-34197 — Apache ActiveMQ RCE via Jolokia API \| PoC Exploit	2	2026-04-09
GitHub PoC	CVE-2026-34197	2	2026-04-09
GitHub PoC	xshysjhq/CVE-2026-34197-payload-Apache-ActiveMQ-	1	2026-04-20

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Protection full Process
Action available security rule
Review automated Inferred
Record active

Decided by	A vulnerability class already blocked by an ARMR security rule
Finding	Protected by Waratek's ARMR command-injection security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-78: OS Command Injection.
Candidate fix	https://bugzilla.redhat.com/show_bug.cgi?id=2455869 : a Red Hat bug: the triage, which links onward to the fix

Decided by

A vulnerability class already blocked by an ARMR security rule

Finding

Protected by Waratek's ARMR command-injection security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-78: OS Command Injection.

Candidate fix

https://bugzilla.redhat.com/show_bug.cgi?id=2455869 : a Red Hat bug: the triage, which links onward to the fix

How to mitigate CVE-2026-34197

Upgrade the affected software to a release that fixes it: 5.19.5 or 6.2.3. Until you can, Waratek RASP blocks exploitation with its process rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

CVSS

8.8 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary published

CVSS 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H redhat-SADP Secondary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	8.8	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`	CISA-ADP	Secondary	published
CVSS 3.1	8.8	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`	redhat-SADP	Secondary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

org.apache.activemq:activemq-broker 0 5.19.5 unbounded

org.apache.activemq:activemq-broker 6.0.0 6.2.3 unbounded

org.apache.activemq:activemq-all 0 5.19.5 unbounded

org.apache.activemq:activemq-all 6.0.0 6.2.3 unbounded

Package	Introduced	Fixed	Last affected
`org.apache.activemq:activemq-broker`	0	`5.19.5`	unbounded
`org.apache.activemq:activemq-broker`	6.0.0	`6.2.3`	unbounded
`org.apache.activemq:activemq-all`	0	`5.19.5`	unbounded
`org.apache.activemq:activemq-all`	6.0.0	`6.2.3`	unbounded

Products and versions

4 products, 8 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apache	activemq	generic	＜ 5.19.4 · ≥ 6.0.0 and ＜ 6.2.3
nvd	apache	activemq broker	generic	＜ 5.19.4 · ≥ 6.0.0 and ＜ 6.2.3
osv	org.apache.activemq	activemq-all	generic	＜ 5.19.5 · ≥ 6.0.0 and ＜ 6.2.3
osv	org.apache.activemq	activemq-broker	generic	＜ 5.19.5 · ≥ 6.0.0 and ＜ 6.2.3

Source

Vendor

Product

Scheme

Affected versions

nvd

apache

activemq

generic

＜ 5.19.4 · ≥ 6.0.0 and ＜ 6.2.3

nvd

apache

activemq broker

generic

＜ 5.19.4 · ≥ 6.0.0 and ＜ 6.2.3

osv

org.apache.activemq

activemq-all

generic

＜ 5.19.5 · ≥ 6.0.0 and ＜ 6.2.3

osv

org.apache.activemq

activemq-broker

generic

＜ 5.19.5 · ≥ 6.0.0 and ＜ 6.2.3

References

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2455869	bugzilla
https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt	WEB
https://github.com/apache/activemq	PACKAGE
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34197	WEB
http://www.openwall.com/lists/oss-security/2026/04/06/3	WEB
https://access.redhat.com/security/cve/CVE-2026-34197	Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34197.json	Third Party Advisory

URL

Timeline

Published	2026-04-07	By the CVE Program.
VulnCheck KEV: earliest evidence	2026-04-13	Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
Added to CISA KEV	2026-04-16	Listed in CISA's Known Exploited Vulnerabilities catalog.
NVD record modified	2026-10-26	NVD's own last-modified date for this record.
VulnCheck KEV: latest evidence	2026-11-12	Date of the newest report, exploit reference or honeypot sighting in VulnCheck KEV's record.

Published

2026-04-07

By the CVE Program.

VulnCheck KEV: earliest evidence

2026-04-13

Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.

Added to CISA KEV

2026-04-16

Listed in CISA's Known Exploited Vulnerabilities catalog.

NVD record modified

2026-10-26

NVD's own last-modified date for this record.

VulnCheck KEV: latest evidence

2026-11-12

Date of the newest report, exploit reference or honeypot sighting in VulnCheck KEV's record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: org.apache.activemq:activemq-broker, org.apache.activemq:activemq-all

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint matched Mitigation candidate References include candidate fix URL (bugzilla tier): https://bugzilla.redhat.com/show_bug.cgi?id=2455869

18 open-source-maven skipped The affected package being open source on Maven, so the fix can be read

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match decided it matched Protected by Waratek CWE-78 (OS Command Injection) is mitigable by an ARMR command-injection security rule.

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold skipped Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published skipped Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

Products the scope rules checked

The products this CVE's record names, and whether VRT tracks each one. The scope rules decided on these.

Vendor Product Tracked CPE Source

apache activemq tracked cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* yaml

apache activemq_broker not tracked cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*

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