Bug 2494847 (CVE-2026-49432) - CVE-2026-49432 org.apache.activemq/activemq: org.apache.activemq/activemq-all: org.apache.activemq/activemq-stomp: Apache ActiveMQ: Denial of Service via improper input validation in STOMP connector
Summary: CVE-2026-49432 org.apache.activemq/activemq: org.apache.activemq/activemq-all...
Keywords:
Status: NEW
Alias: CVE-2026-49432
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2495072 2495073
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-30 11:02 UTC by OSIDB Bzimport
Modified: 2026-09-10 16:37 UTC (History)
58 users (show)

Fixed In Version:
Clone Of:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:66488 0 None None None 2026-09-10 16:37:11 UTC

Description OSIDB Bzimport 2026-06-30 11:02:43 UTC 
Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.

A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure.
This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7.




Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.
Comment 5 errata-xmlrpc 2026-09-10 16:37:07 UTC 
This issue has been addressed in the following products:

  Red Hat AMQ Broker 7.14.1

Via RHSA-2026:66488 https://access.redhat.com/errata/RHSA-2026:66488
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