CVE-2026-53917

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/grrd1mwgkgblqjbwkkq6dvmdxd9ov2dx	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/29/14	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:activemq::::::::
	cpe:2.3:a:apache:activemq::::::::
	cpe:2.3:a:apache:activemq_broker::::::::
	cpe:2.3:a:apache:activemq_broker::::::::

History

No history.

Information

Published : 2026-06-30 11:16

Updated : 2026-07-02 18:41

NVD link : CVE-2026-53917

Mitre link : CVE-2026-53917

CVE.ORG link : CVE-2026-53917

JSON object : View

Products Affected

apache

activemq
activemq_broker

CWE

CWE-789

Memory Allocation with Excessive Size Value

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