CVE-2025-62703

{
  "id": "CVE-2025-62703",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-25T22:15:47.693",
  "lastModified": "2026-10-19T13:10:00.110",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Fugue is a unified interface for distributed computing that lets users execute Python, Pandas, and SQL code on Spark, Dask, and Ray with minimal rewrites. In version 0.9.2 and prior, there is a remote code execution vulnerability by pickle deserialization via FlaskRPCServer. The Fugue framework implements an RPC server system for distributed computing operations. In the core functionality of the RPC server implementation, I found that the _decode() function in fugue/rpc/flask.py directly uses cloudpickle.loads() to deserialize data without any sanitization. This creates a remote code execution vulnerability when malicious pickle data is processed by the RPC server. The vulnerability exists in the RPC communication mechanism where the client can send arbitrary serialized Python objects that will be deserialized on the server side, allowing attackers to execute arbitrary code on the victim's machine. This issue has been patched via commit 6f25326."
    },
    {
      "lang": "es",
      "value": "Fugue es una interfaz unificada para computación distribuida que permite a los usuarios ejecutar código Python, Pandas y SQL en Spark, Dask y Ray con mínimas reescrituras. En la versión 0.9.2 y anteriores, existe una vulnerabilidad de ejecución remota de código por deserialización de pickle a través de FlaskRPCServer. El framework de Fugue implementa un sistema de servidor RPC para operaciones de computación distribuida. En la funcionalidad central de la implementación del servidor RPC, encontré que la función _decode() en fugue/rpc/flask.py usa directamente cloudpickle.loads() para deserializar datos sin ninguna sanitización. Esto crea una vulnerabilidad de ejecución remota de código cuando datos pickle maliciosos son procesados por el servidor RPC. La vulnerabilidad existe en el mecanismo de comunicación RPC donde el cliente puede enviar objetos Python serializados arbitrarios que serán deserializados en el lado del servidor, permitiendo a los atacantes ejecutar código arbitrario en la máquina de la víctima. Este problema ha sido parcheado mediante el commit 6f25326."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "fugue-project",
          "product": "fugue",
          "versions": [
            {
              "version": "<= 0.9.2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-26T15:59:28.938543Z",
          "id": "CVE-2025-62703",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fugue-project:fugue:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://github.com/fugue-project/fugue/commit/6f25326779fd1f528198098d6287c5a863176fc0",
      "source": "[email protected]",
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        "Patch"
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      "source": "[email protected]",
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}