Severity: important
Affected versions:
- Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.7
- Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.6
- Apache ActiveMQ Web (org.apache.activemq:activemq-web) before 5.19.7
- Apache ActiveMQ Web (org.apache.activemq:activemq-web) 6.0.0 before 6.2.6
Description:
Improper Neutralization of Input During Web Page Generation ('Cross-site
Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web.
The MessageServlet in the ActiveMQ web console API copies every JMS message
property into an HTTP response header without any validation. This can allow
overwriting and injecting security headers by setting them on JMS messages that
are returned by the servlet.
This issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6;
Apache ActiveMQ Web: before 5.19.7, from 6.0.0 before 6.2.6.
Users are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the
issue. The MessageServlet has now been deprecated and disabled by default.
Credit:
Vishal Shukla (finder)
pyn3rd (finder)
uname (finder)
4ra1n (finder)
References:
https://activemq.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-42253
