CVEvulnerability
CVE-2026-53917
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-30
- Last modified
- 2026-07-02
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-789
Description
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.
Affected configurations
• apache activemq (< 5.19.8)
• apache activemq (>= 6.0.0 < 6.2.7)
• apache activemq broker (< 5.19.8)
• apache activemq broker (>= 6.0.0 < 6.2.7)
Related
Weakness · CWE (1)
- CWE-789 Memory Allocation with Excessive Size Value weakness
References
- https://lists.apache.org/thread/grrd1mwgkgblqjbwkkq6dvmdxd9ov2dx Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/06/29/14 Third Party Advisory