CVE-2026-53916
Description
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap. 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 Stomp: 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.
How to fix
- apache activemq5.19.8, 6.2.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache activemq | v < 5.19.8, 6.0.0 ≤ v < 6.2.7 | 5.19.8, 6.2.7 |
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