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CVE-2026-42253

Estado: AnalizadaMedia (6.1)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Apache — ActivemqApache — Activemq WEB

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2026-06-01T13:12:19.333750Z"
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  "published": "2026-06-01T09:16:18.673",
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    {
      "lang": "en",
      "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web.\n\nThe MessageServlet in the ActiveMQ web console API copies every JMS message\nproperty 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.\n\nThis 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.\n\nUsers 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."
    },
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      "lang": "es",
      "value": "Vulnerabilidad de Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') en Apache ActiveMQ, Apache ActiveMQ Web.\n\nEl 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.\n\nEste 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.\n\nSe 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."
    }
  ],
  "lastModified": "2026-07-22T07:10:00.107",
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