CVE-2026-34197

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

Overview

State: PUBLISHED
Assigner (CNA): apache
CVSS severity: —
CVSS score: —
CVSS vector: AV:N/AC:L/Au:S/C:C/I:C/A:C
Effective score: 8.8 / 10 HIGH source: NVD
CWE(s): CWE-20, CWE-94
Reserved: 2026-03-26
Published: 2026-04-07 09:50 UTC
Last updated: 2026-04-17 05:55 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34197.json
Linked Threat: CVE-2026-34197 — Apache ActiveMQ: Apache ActiveMQ Improper Input Validation Vulnerability

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: Apache ActiveMQ Improper Input Validation Vulnerability
Vendor / project: Apache
Product: ActiveMQ
Date added to KEV: 2026-04-16
Remediation due: 2026-04-30
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.
Ransomware campaign use: Unknown
CISA notes: https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt ; https://nvd.nist.gov/vuln/detail/CVE-2026-34197
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-04-07 09:16:20 UTC
NVD last modified: 2026-04-16 19:59:38 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.7007 (probability of exploitation in next 30 days)
EPSS percentile: 98.70% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-19588
Assigner: apache
Published: Apr 7, 2026, 7:50:10 AM
Updated: May 22, 2026, 1:17:14 PM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 84.6500
Vendors: Apache Software Foundation
Products: Apache ActiveMQ (6.0.0 <6.2.3)

Apache ActiveMQ Broker (6.0.0 <6.2.3)

Apache ActiveMQ Broker (0 <5.19.4)

Apache ActiveMQ (0 <5.19.4)

Apache ActiveMQ All (6.0.0 <6.2.3)

Apache ActiveMQ All (0 <5.19.4)

ENISA 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

EUVD references (1)

https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt

Affected products (3)

Vendor	Product	Versions	Platforms
Apache Software Foundation	Apache ActiveMQ Broker	`0` (affected), `6.0.0` (affected)	—
Apache Software Foundation	Apache ActiveMQ All	`0` (affected), `6.0.0` (affected)	—
Apache Software Foundation	Apache ActiveMQ	`0` (affected), `6.0.0` (affected)	—

Affected products — CPE 2.3 (2) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt vendor-advisory

Web references (6)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

http://cwe.mitre.org/data/definitions/20.html rapid7:cwe.mitre.org
http://cwe.mitre.org/data/definitions/94.html rapid7:cwe.mitre.org
https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt rapid7:activemq.apache.org
https://attackerkb.com/topics/CVE-2026-34197 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-19588 rapid7:euvd.enisa.europa.eu
https://www.cve.org/CVERecord?id=CVE-2026-34197 rapid7:www.cve.org

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

http://www.openwall.com/lists/oss-security/2026/04/06/3 af854a3a-2127-422b-91ae-364da2661108 Mailing ListThird Party Advisory
https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt security@apache.org Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34197 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource

Indicators (3)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cwe	`CWE-20`	no local data	2026-05-14 02:58 UTC
cve	`CVE-2026-34197`	no local data	2026-05-14 02:58 UTC
cwe	`CWE-94`	no local data	2026-05-14 02:58 UTC

Remediations (14)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review

web:blog.qualys.com

With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

2026-05-23 16:14 UTC
CVE-2026-34197 ActiveMQ RCE via Jolokia API | Horizon3.ai

web:horizon3.ai

CVE-2026-34197 is an ActiveMQ RCE flaw exploiting Jolokia to execute remote commands. Learn how it works, affected versions, and detection steps.

2026-05-23 16:14 UTC
Nvd - Cve-2026-34197

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-23 16:14 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-23 16:14 UTC
CISA Adds Critical Apache ActiveMQ RCE Flaw to KEV Catalog

web:securityonline.info

CISA adds CVE-2026-34197 to KEV. Apache ActiveMQ's Jolokia bridge flaw allows RCE via remote Spring XML loading. Remediate by April 30, 2026 . Patch now!

2026-05-23 16:14 UTC
Apache ActiveMQ CVE-2026-34197 Added to CISA KEV Amid Active Exploitation

web:thehackernews.com

CVE-2026-34197 exploited in Apache ActiveMQ; CISA KEV listing sets April 30, 2026 patch deadline, increasing enterprise RCE risk.

2026-05-23 16:14 UTC
CISA flags Apache ActiveMQ flaw as actively exploited in attacks

web:www.bleepingcomputer.com

CISA warned that attackers are now exploiting a high-severity Apache ActiveMQ vulnerability, which was patched earlier this month after going undetected for 13 years.

2026-05-23 16:14 UTC
CVE Record: CVE-2026-34197

web:www.cve.org

Title: Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeans

2026-05-23 16:14 UTC
CVE-2026-34197: Apache ActiveMQ RCE Vulnerability - SentinelOne

web:www.sentinelone.com

CVE-2026-34197 is a remote code execution vulnerability in Apache ActiveMQ. Learn about its impact, affected versions, and mitigation methods.

2026-05-23 16:14 UTC
CVE-2026-34197 | Apache ActiveMQ Vulnerability | UpGuard

web:www.upguard.com

CVE-2026-34197 is a high-severity RCE vulnerability in Apache ActiveMQ. Patch immediately to versions 5.19.4 or 6.2.3 to prevent remote code injection.

2026-05-23 16:14 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-05-14 08:48 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-05-14 08:48 UTC
CISA tells feds to patch 13-year-old Apache ActiveMQ bug

web:www.theregister.com

CISA is sounding the alarm on a newly-exploited Apache ActiveMQ bug, ordering federal agencies to patch within two weeks as attackers circle a flaw that's been quietly lurking for more than a decade. The US cybersecurity agency added the bug, tracked as CVE-2026-34197 , to its Known Exploited Vulnerabilities (KEV) catalog on Thursday, triggering a Binding Operational Directive (BOD) 22-01 ...

2026-05-14 08:48 UTC
CISA Required Action

CISA KEV

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: Unknown

2026-05-14 01:13 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-34197.json.

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