CVE-2026-50750

Analyzed Analyzed - Analysis Complete

Denial of Service via OOM in Apache ActiveMQ

Publication date: 2026-06-30

Last updated on: 2026-07-02

Assigner: Apache Software Foundation

Description

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. Following the fix for CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending a ConnectionInfo, until the broker will crash with OOM. This issue affects Apache ActiveMQ Broker: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ All: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7. Users are recommended to upgrade to version 6.2.7, which fixes the issue.

CVSS Scores

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Meta Information

Published

2026-06-30

Last Modified

2026-07-02

Generated

2026-07-20

AI Q&A

2026-06-30

EPSS Evaluated

2026-07-19

NVD

CVE-2026-50750

EUVD

EUVD-2026-40280

Affected Vendors & Products

Vendor	Product	Version / Range
apache	activemq	5.19.7
apache	activemq	6.2.6
apache	activemq_broker	5.19.7
apache	activemq_broker	6.2.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This vulnerability is a Denial of Service (DoS) issue caused by an Out of Memory (OOM) condition in Apache ActiveMQ Broker. An unauthenticated attacker can exploit it by sending repeated BrokerInfo commands without sending a ConnectionInfo command. This causes the broker to consume excessive memory until it crashes.

Impact Analysis

The impact of this vulnerability is that an attacker can cause the Apache ActiveMQ Broker to crash by exhausting its memory resources. This results in a Denial of Service, making the broker unavailable and potentially disrupting any services or applications that rely on it for messaging.

Compliance Impact

The provided information does not specify how this Denial of Service vulnerability in Apache ActiveMQ Broker impacts compliance with common standards and regulations such as GDPR or HIPAA.

Mitigation Strategies

Users are recommended to upgrade Apache ActiveMQ Broker, Apache ActiveMQ, or Apache ActiveMQ All to version 6.2.7 or later, which contains the fix for this vulnerability.

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