CVE-2026-71558

{
  "id": "CVE-2026-71558",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-07T10:16:59.337",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap type confusion vulnerability in Apache Fory C++ deserialization.\n\nThis issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0. A crafted input payload can bypass type compatibility checks during polymorphic smart-pointer deserialization, causing an object of an incompatible type to be treated as the declared base type. This may result in undefined behavior and potentially lead to denial of service or arbitrary code execution.\n\n\nUsers are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications not using Apache Fory C++ polymorphic smart-pointer deserialization are not affected."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de confusión de tipos en el heap en la deserialización de Apache Fory C++.\n\nEste problema afecta a las versiones de Apache Fory C++ desde la 0.14.0 anteriores a la 1.5.0. Una carga útil de entrada manipulada puede eludir las comprobaciones de compatibilidad de tipos durante la deserialización polimórfica de punteros inteligentes, haciendo que un objeto de un tipo incompatible sea tratado como el tipo base declarado. Esto puede resultar en un comportamiento indefinido y potencialmente conducir a una denegación de servicio o ejecución de código arbitrario.\n\nSe recomienda a los usuarios actualizar a Apache Fory 1.5.0, que corrige este problema. Las aplicaciones que no utilizan la deserialización polimórfica de punteros inteligentes de Apache Fory C++ no se ven afectadas."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Fory",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.14.0",
              "lessThan": "1.5.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-07T17:48:07.702770Z",
          "id": "CVE-2026-71558",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    },
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "configurations": [
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  "references": [
    {
      "url": "https://lists.apache.org/thread/oywndv60jwqdv6j37t7bc1qbcc4b235r",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
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    {
      "url": "http://www.openwall.com/lists/oss-security/2026/08/07/3",
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}