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      "cve": "CVE-2026-26007",
      "date": "2026-07-11",
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When the victim computes the shared secret as S = [victim_private_key]P via ECDH, this leaks information about victim_private_key mod (small_subgroup_order). For curves with cofactor \u003e 1, this reveals the least significant bits of the private key. When these weak public keys are used in ECDSA , it\u0027s easy to forge signatures on the small subgroup. Only SECT curves are impacted by this. This vulnerability is fixed in 46.0.5.\"},{\"lang\":\"es\",\"value\":\"Criptograf\u00eda es un paquete dise\u00f1ado para exponer primitivas criptogr\u00e1ficas y recetas a los desarrolladores de Python. Antes de la versi\u00f3n 46.0.5, las funciones public_key_from_numbers (o EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() y load_pem_public_key() no verifican que el punto pertenezca al subgrupo de orden primo esperado de la curva. Esta validaci\u00f3n faltante permite a un atacante proporcionar un punto P de clave p\u00fablica de un subgrupo de orden peque\u00f1o. Esto puede llevar a problemas de seguridad en varias situaciones, como la verificaci\u00f3n de firma (ECDSA) y la negociaci\u00f3n de clave compartida (ECDH) m\u00e1s com\u00fanmente utilizadas. Cuando la v\u00edctima calcula el secreto compartido como S = [victim_private_key]P a trav\u00e9s de ECDH, esto filtra informaci\u00f3n sobre victim_private_key mod (orden_subgrupo_peque\u00f1o). Para curvas con cofactor \u0026gt; 1, esto revela los bits menos significativos de la clave privada. Cuando estas claves p\u00fablicas d\u00e9biles se utilizan en ECDSA, es f\u00e1cil falsificar firmas en el subgrupo peque\u00f1o. Solo las curvas SECT se ven afectadas por esto. 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      "cve": "CVE-2026-26007",
      "id": "CVE-2026-26007",
      "initial_release_date": "2026-02-10T21:42:56.471000+00:00",
      "product_status:fixed": "885",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "1174",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "cryptography: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26007.json",
      "version": "3"
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