CVE-2026-44020

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From 2.13.0 until 2.74.0, the USPTO patent XML parser used the standard xml.sax.parseString() without protection against XML External Entity (XXE) attacks. An attacker could craft malicious USPTO patent XML files with external entity references that could read arbitrary files from the server filesystem, perform Server-Side Request Forgery (SSRF) attacks, or cause denial of service through entity expansion (Billion Laughs attack). The vulnerability affects three USPTO patent format parsers: ICE (v4.x), Grant v2.5, and Application v1.x. This vulnerability is fixed in 2.74.0."}, {"lang": "es", "value": "Docling simplifica el procesamiento de documentos al analizar diversos formatos y al proporcionar integraciones con el ecosistema de IA generativa. Desde la versi\u00f3n 2.13.0 hasta la 2.74.0, el analizador XML de patentes de la USPTO utiliz\u00f3 la funci\u00f3n est\u00e1ndar xml.sax.parseString() sin protecci\u00f3n contra ataques de entidad externa XML (XXE). Un atacante podr\u00eda crear archivos XML de patentes de la USPTO maliciosos con referencias a entidades externas que podr\u00edan leer archivos arbitrarios del sistema de archivos del servidor, realizar ataques de falsificaci\u00f3n de petici\u00f3n del lado del servidor (SSRF) o causar denegaci\u00f3n de servicio a trav\u00e9s de la expansi\u00f3n de entidades (ataque Billion Laughs). La vulnerabilidad afecta a tres analizadores de formato de patentes de la USPTO: ICE (v4.x), Grant v2.5 y Application v1.x. 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