Title: Apache ActiveMQ de Apache Software Foundation, Description: Vulnerabilidad de Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') en Apache ActiveMQ, Apache ActiveMQ Web.

El MessageServlet en la API de la consola web de ActiveMQ copia cada propiedad de mensaje JMS en un encabezado de respuesta HTTP sin ninguna validación. Esto puede permitir sobrescribir e inyectar encabezados de seguridad al establecerlos en mensajes JMS que son devueltos por el servlet.

Este problema afecta a Apache ActiveMQ: anterior a 5.19.7, desde 6.0.0 anterior a 6.2.6; Apache ActiveMQ Web: anterior a 5.19.7, desde 6.0.0 anterior a 6.2.6.

Se recomienda a los usuarios actualizar a la versión 5.19.7 o 6.2.6, que corrige el problema. El MessageServlet ahora ha sido declarado obsoleto y deshabilitado por defecto.

{"timestamp":"2026-06-01T13:12:19.333750Z","id":"CVE-2026-42253","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ","defaultStatus":"unaffected","collectionURL":"https://repo.maven.apache.org/maven2","packageName":"org.apache.activemq:apache-activemq","versions":[{"version":"0","lessThan":"5.19.7","versionType":"semver","status":"affected"},{"version":"6.0.0","lessThan":"6.2.6","versionType":"semver","status":"affected"}]},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ Web","defaultStatus":"unaffected","collectionURL":"https://repo.maven.apache.org/maven2","packageName":"org.apache.activemq:activemq-web","versions":[{"version":"0","lessThan":"5.19.7","versionType":"semver","status":"affected"},{"version":"6.0.0","lessThan":"6.2.6","versionType":"semver","status":"affected"}]}]

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

OR
          *cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* versions up to (excluding) 5.19.7
          *cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.2.6
          *cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* versions up to (excluding) 5.19.7
          *cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.2.6

Apache Software Foundation: https://lists.apache.org/thread/j9vmlc410ht5f28fc98gx75jcbq62j00 Types: Mailing List, Vendor Advisory

CVE: http://www.openwall.com/lists/oss-security/2026/05/31/17 Types: Mailing List, Third Party Advisory

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

http://www.openwall.com/lists/oss-security/2026/05/31/17

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.

CWE-79

https://lists.apache.org/thread/j9vmlc410ht5f28fc98gx75jcbq62j00