Vulnerability Details CVE-2026-50750
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 48.9%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-50750
-
cpe:2.3:a:apache:activemq:5.19.7
-
cpe:2.3:a:apache:activemq:6.2.6
-
cpe:2.3:a:apache:activemq_broker:5.19.7
-
cpe:2.3:a:apache:activemq_broker:6.2.6