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Antes de las versiones 3.2.3 y 4.1.1, Jupyter Server Proxy no verificaba adecuadamente la autenticaci\u00f3n del usuario al utilizar websockets, lo que permit\u00eda el acceso no autenticado a cualquier persona que tuviera acceso de red al endpoint del servidor Jupyter. Esta vulnerabilidad puede permitir el acceso remoto no autenticado a cualquier endpoint de websocket configurado para ser accesible a trav\u00e9s de Jupyter Server Proxy. En muchos casos, esto conduce a la ejecuci\u00f3n remota de c\u00f3digo arbitrario no autenticado, debido a c\u00f3mo las instancias afectadas usan websockets. Los endpoints de websocket expuestos por el propio `jupyter_server` no se ven afectados. Los proyectos que no dependen de websockets tampoco se ven afectados. Las versiones 3.2.3 y 4.1.1 contienen una soluci\u00f3n para este problema. 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