CVE-2026-59878

published 2026-07-28

CVE-2026-59878: Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed…

Priority P3 46 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.

A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.
This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.

Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
apache	activemq	< 5.19.9	5.19.9
apache	activemq	>= 6.0.0 < 6.2.8	6.2.8
apache	activemq_all	< 5.19.9	5.19.9
apache	activemq_all	>= 6.0.0 < 6.2.8	6.2.8
apache	activemq_amqp	< 5.19.9	5.19.9
apache	activemq_amqp	>= 6.0.0 < 6.2.8	6.2.8
apache_software_foundation	apache_activemq	< 5.19.9	5.19.9
apache_software_foundation	apache_activemq	>= 6.0.0 < 6.2.8	6.2.8
apache_software_foundation	apache_activemq_all	< 5.19.9	5.19.9
apache_software_foundation	apache_activemq_all	>= 6.0.0 < 6.2.8	6.2.8
apache_software_foundation	apache_activemq_amqp	< 5.19.9	5.19.9
apache_software_foundation	apache_activemq_amqp	>= 6.0.0 < 6.2.8	6.2.8

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