CVE-2026-42588Patch(apache / activemq)

MEDIUMCVSS 8.1 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch apache activemq systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, 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). An authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the "masterslave:// " URL which can allow loading a 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 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6. Users are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue.

4.3/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-20CWE-94

Priority

MEDIUM

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • activemq
  • activemq_broker

Threat summary

  • Public PoC and exploit tooling are both present
  • Patch or workaround signal is available
  • 10 mentions across 9 observed days
  • Momentum state: stable

What's happening

  • Exploit tool or code specified in 3 signals
  • PoC mentioned or linked in 3 signals
  • Patch or workaround mentioned in 4 signals
  • Technical details provided in 6 signals
  • General: 2 classified signals
  • Peaked 6d ago at 2 mentions (2026-06-02); latest day: 1
  • 10 total mentions across 9 days

Affected systems

Vendors
Products
activemqactivemq_broker

Deep dive

Activity timeline10 mentions / 9d
01122Mentions · 2026-05-31: 1Mentions · 2026-06-01: 1Mentions · 2026-06-02: 2Mentions · 2026-06-04: 1Mentions · 2026-06-06: 1Mentions · 2026-06-08: 1Mentions · 2026-06-16: 1Mentions · 2026-06-17: 1Mentions · 2026-07-04: 1PoC Mentioned / Linked · 2026-06-06: 1PoC Mentioned / Linked · 2026-06-08: 1PoC Mentioned / Linked · 2026-07-04: 1Exploit Tool / Code · 2026-06-06: 1Exploit Tool / Code · 2026-06-08: 1Exploit Tool / Code · 2026-07-04: 1Patch / Workaround · 2026-06-02: 2Patch / Workaround · 2026-06-04: 1Patch / Workaround · 2026-06-16: 1Technical Details · 2026-06-01: 1Technical Details · 2026-06-02: 2Technical Details · 2026-06-06: 1Technical Details · 2026-06-16: 1Technical Details · 2026-07-04: 105-3106-0106-0206-0406-0606-0806-1606-1707-04
Signal classification5 categories
Patch
440.0%
General
220.0%
Exploit
220.0%
Disclosure
110.0%
PoC
110.0%
Referenced assets9 URLs
Classification over time
DateTotalLabels
2026-05-311
General1
2026-06-011
Disclosure1
2026-06-022
Patch2
2026-06-041
Patch1
2026-06-061
Exploit1
2026-06-081
Exploit1
2026-06-161
Patch1
2026-06-171
General1
2026-07-041
PoC1
Full discourse10 posts
  • Nicolas Krassas@Dinosn
    PoC

    Apache ActiveMQ Classic RCE research: CVE-2026-34197 / CVE-2026-42588 bypass chain + hardened-6.2.6 audit findings https://github.com/dinosn/apache-activemq-rce-research

    Post summary

    The post announces PoC research for two ActiveMQ CVEs, linking to a GitHub repository that presumably contains exploit code and technical details, but it does not discuss active exploitation, patches, or debunking.

    016059355.4K
    160.8K followersView on X
  • Clandestine@akaclandestine
    Exploit

    GitHub - Catherines77/ActiveMQ-EXPtools: 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) · GitHub https://github.com/Catherines77/ActiveMQ-EXPtools

    Post summary

    A GitHub repository provides an ActiveMQ exploitation tool for multiple CVEs, indicating availability of PoC/exploit code but lacking indications of active exploitation, patches, or technical detail.

    013051324.4K
    62.7K followersView on X
  • pyn3rd@pyn3rd
    Disclosure

    #CVE-2026-42253 Apache ActiveMQ Web: HTTP Response Header Injection via JMS Message Properties #CVE-2026-42588 Apache ActiveMQ: Remote Code Execution via Jolokia addNetworkConnector These two vulnerabilities we reported have been credited. https://t.co/S385zgrs2v

    Post summary

    The tweet announces that two Apache ActiveMQ vulnerabilities, CVE-2026-42253 and CVE-2026-42588, were reported and credited, providing basic technical details but no PoC, exploit, or patches.

    1202872.4K
    14.9K followersView on X
  • VulnTracker@vuln_tracker
    Patch

    Apache ActiveMQ is having a rough month. Two more CVEs. ⚠️ CVE-2026-42253 - HTTP Response Header Injection via JMS Message Properties ⚠️ CVE-2026-42588 - RCE via Jolokia addNetworkConnector The Jolokia one is the scary one - default access policy permits exec operations on all ActiveMQ MBeans. Fix: upgrade to 5.19.7 or 6.2.6. http://VulnTracker.io

    Post summary

    The post announces two new ActiveMQ CVEs and advises users to upgrade to patched versions 5.19.7 or 6.2.6 to mitigate the vulnerabilities.

    011324.9K
    681 followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    General

    CVE-2026-42588 ApacheのActiveMQの脆弱性をわかりやすく解説|影響範囲と対策まとめ https://www.cybernote.click/2026/06/14/cve-2026-42588-activemq/ #IT #Security #cybersecurity

    Post summary

    The snippet points to an article that provides an overview of CVE‑2026‑42588’s impact and countermeasures, but offers no PoC, exploit, active attack evidence, patch details, technical specifics, or debunking statements.

    0001043
    209 followersView on X
  • dbugs@ptdbugs
    Exploit

    Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Remote Code Execution via Jolokia addNetworkConnector CVE: CVE-2026-42588 PT ID: PT-2026-45373 Vendor: Apache Software Foundation Product: Apache ActiveMQ Broker CVSS: 8.1 Credits: pyn3rd Description: Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, 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). An authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the "masterslave:// " URL which can allow loading a 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 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6. References: • https://dbugs.ptsecurity.com/vulnerability/CVE-2026-42588 • https://lists.apache.org/thread/ns0zktfo16s9ql2mmtqtlb6p6xcs45xm PoC/Exploit: https://github.com/hnytgl/CVE-2026-42588 #dbugs_vuln

    Post summary

    Apache ActiveMQ Broker CVE-2026-42588 is a remote code execution vulnerability that can be triggered through Jolokia’s addNetworkConnector; a PoC/exploit is available on GitHub, but no active exploitation has been reported.

    00001469
    1.5K followersView on X
  • CCB Alert@CCBalert
    Patch

    Warning: #Apache patched 3 vulnerabilities in Apache #ActiveMQ. CVE-2026-45505; CVSS:8.0, CVE-2026-49157; CVSS:8.8 & CVE-2026-42588; CVSS:8.1 may lead to high confidentiality, integrity and availability impact in affected versions. Time to #Patch #Patch #Patch

    Post summary

    The post announces that Apache has released patches for three CVEs in ActiveMQ, providing CVE IDs, CVSS scores, and highlighting potential high impact.

    01000215
    7.2K followersView on X
  • ケイ | IT・セキュリティ系副業Webライター@Teeeda_worker
    Patch

    CVE-2026-42588 ApacheのActiveMQの脆弱性をわかりやすく解説|影響範囲と対策まとめ https://www.cybernote.click/2026/06/14/cve-2026-42588-activemq/ #IT #Security #cybersecurity

    Post summary

    The article explains CVE‑2026‑42588 in ActiveMQ, detailing the technical aspects and summarizing available patches and countermeasures.

    0000048
    209 followersView on X
  • セキュリティ対策Lab@securityLab_jp
    Patch

    Apache ActiveMQ、危険度の高い脆弱性など4件を修正-CVE-2026-42588-CVE-2026-45505 https://rocket-boys.co.jp/security-measures-lab/activemq-security-update-cve-2026-42588-cve-2026-45505/ #セキュリティ対策Lab #security #securitynews

    Post summary

    The post announces a patch update for four ActiveMQ vulnerabilities, including CVE-2026-42588 and CVE-2026-45505, but provides no PoC, exploit, or technical details.

    0000099
    409 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-42588 CVE-2026-42588 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42588

    Post summary

    Only the CVE identifier and a generic link are provided, with no supporting technical or actionable information.

    0000079
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appapacheactivemq---
Appapacheactivemq_broker---

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