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.
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)
|
History
02 Jul 2026, 18:41
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://lists.apache.org/thread/grrd1mwgkgblqjbwkkq6dvmdxd9ov2dx - Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2026/06/29/14 - Third Party Advisory | |
| First Time |
Apache activemq
Apache Apache activemq Broker |
|
| CPE | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* |
30 Jun 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
30 Jun 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
30 Jun 2026, 11:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
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