CVE-2026-50750 — HIGH (7.5)

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Activemq	5.19.7
Apache	Activemq Broker	5.19.7

Related Weaknesses (CWE)

CWE-400

References

https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87krVendor AdvisoryMailing List

FAQ

What is CVE-2026-50750?

CVE-2026-50750 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 brok...

How severe is CVE-2026-50750?

CVE-2026-50750 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-50750?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Activemq, Apache Activemq Broker.