CVE-2026-12986

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Combined with the absence of CSRF protection on DownloadServlet, an unauthenticated attacker can trick a logged-in administrator into triggering the token leak, then replay the stolen token to gain full administrative access to the Payara domain, leading to arbitrary code execution via WAR deployment. 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Combinado con la ausencia de protecci\u00f3n CSRF en DownloadServlet, un atacante no autenticado puede enga\u00f1ar a un administrador que ha iniciado sesi\u00f3n para que active la fuga del token, luego reproducir el token robado para obtener acceso administrativo completo al dominio de Payara, lo que lleva a la ejecuci\u00f3n de c\u00f3digo arbitrario a trav\u00e9s del despliegue de WAR. 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