CVE-2026-50750
Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All have a Denial of Service via Out of Memory vulnerability
Summary
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.
Affected packages
| Ecosystem | Package | Affected versions | Fixed versions |
|---|---|---|---|
| Maven | org.apache.activemq:activemq-all | — | 5.19.8, 6.2.7 |
| Maven | org.apache.activemq:activemq-broker | — | 5.19.8, 6.2.7 |
| Maven | org.apache.activemq:apache-activemq | — | 5.19.8, 6.2.7 |
Remediation: Upgrade to 5.19.8 or later.
References
Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.
CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.
EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.