What is CVE-2026-50750?

CVE-2026-50750 is a high-severity vulnerability in Apache Activemq, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-30.

How severe is CVE-2026-50750?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Activemq

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Activemq — versions 5.19.7, 6.2.6
Apache Activemq_broker — versions 5.19.7, 6.2.6
Apache Software Foundation Activemq — versions 5.19.7, 6.2.6
Apache Software Foundation Activemq All — versions 5.19.7, 6.2.6
Apache Software Foundation Activemq Broker — versions 5.19.7, 6.2.6

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2026-50750?: CVE-2026-50750 is a high-severity vulnerability in Apache Activemq, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-30.
How severe is CVE-2026-50750?: High severity. CVSS v3 base score is 7.5 out of 10.