CVE-2026-41043

Medium

Description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. This issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue.

SeverityMedium
CVSS6.5
Exploit probability—
ProductApache Activemq
PublishedApr 24, 2026
First seenApr 24, 2026

How to fix

Update
  • apache activemq5.19.6, 6.2.5 or later
  • apache activemq_web5.19.6, 6.2.5 or later
  • org.apache.activemq:apache-activemq5.19.6, 6.2.5 or later
  • org.apache.activemq:activemq-all5.19.6, 6.2.5 or later
  • org.apache.activemq:activemq-broker5.19.6, 6.2.5 or later

Affected products

ProductAffected versionsFixed in
apache activemqv < 5.19.6, 6.0.0 ≤ v < 6.2.55.19.6, 6.2.5
apache activemq_webv < 5.19.6, 6.0.0 ≤ v < 6.2.55.19.6, 6.2.5
org.apache.activemq:apache-activemqMavenv < 5.19.6, 6.0.0 ≤ v < 6.2.55.19.6, 6.2.5
org.apache.activemq:activemq-allMavenv < 5.19.6, 6.0.0 ≤ v < 6.2.55.19.6, 6.2.5
org.apache.activemq:activemq-brokerMavenv < 5.19.6, 6.0.0 ≤ v < 6.2.55.19.6, 6.2.5

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