{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-14T08:45:10.132","vulnerabilities":[{"cve":{"id":"CVE-2021-39139","sourceIdentifier":"security-advisories@github.com","published":"2021-08-23T18:15:10.540","lastModified":"2025-05-23T16:52:49.707","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. A user is only affected if using the version out of the box with JDK 1.7u21 or below. However, this scenario can be adjusted easily to an external Xalan that works regardless of the version of the Java runtime. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose."},{"lang":"es","value":"XStream es una biblioteca sencilla para serializar objetos a XML y viceversa. En las versiones afectadas, esta vulnerabilidad puede permitir a un atacante remoto cargar y ejecutar código arbitrario desde un host remoto sólo al manipular el flujo de entrada procesado. Un usuario sólo se ve afectado si esta usando la versión out of the box con JDK versión 1.7u21 o por debajo. Sin embargo, este escenario se puede ajustar fácilmente a un Xalan externo que funciona independientemente de la versión del tiempo de ejecución de Java. No está afectado ningún usuario que haya seguido la recomendación de configurar el framework de seguridad de XStream con una lista blanca limitada a los tipos mínimos necesarios. XStream versión 1.4.18 ya no usa una lista negra por defecto, ya que no puede ser asegurada para fines 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