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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache ActiveMQ | < 5.19.7, 6.0.0 – < 6.2.6 | 5.19.7 |
| Apache Software Foundation | Apache ActiveMQ Web | < 5.19.7, 6.0.0 – < 6.2.6 | 5.19.7 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | activemq | No fix yet | — |
| Debian 12 | activemq | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | activemq | No fix yet | — |
| Ubuntu 26.04 LTS | activemq | No fix yet | — |
| Ubuntu 25.10 | activemq | No fix yet | — |
| Ubuntu 24.04 LTS | activemq | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | activemq | No fix yet | — |
| Ubuntu Pro 20.04 LTS | activemq | No fix yet | — |
| Ubuntu Pro 18.04 LTS | activemq | No fix yet | — |
| Ubuntu Pro 16.04 LTS | activemq | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.activemq:activemq-web | < 5.19.7 | 5.19.7 | GHSA-8wm6-6fqh-phmc |
| Maven | org.apache.activemq:activemq-web | >= 6.0.0, < 6.2.6 | 6.2.6 | GHSA-8wm6-6fqh-phmc |
| Maven | org.apache.activemq:apache-activemq | < 5.19.7 | 5.19.7 | GHSA-8wm6-6fqh-phmc |
| Maven | org.apache.activemq:apache-activemq | >= 6.0.0, < 6.2.6 | 6.2.6 | GHSA-8wm6-6fqh-phmc |
Advisories 2
- WID-SEC-2026-3043 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- WID-SEC-2026-1741 Apache ActiveMQ: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 10, 2026
References
- https://lists.apache.org/thread/j9vmlc410ht5f28fc98gx75jcbq62j00 vendor-advisory