CVE-2026-1839

{
  "id": "CVE-2026-1839",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-07T06:16:41.490",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the HuggingFace Transformers library, specifically in the `Trainer` class, allows for arbitrary code execution. The `_load_rng_state()` method in `src/transformers/trainer.py` at line 3059 calls `torch.load()` without the `weights_only=True` parameter. This issue affects all versions of the library supporting `torch>=2.2` when used with PyTorch versions below 2.6, as the `safe_globals()` context manager provides no protection in these versions. An attacker can exploit this vulnerability by supplying a malicious checkpoint file, such as `rng_state.pth`, which can execute arbitrary code when loaded. The issue is resolved in version v5.0.0rc3."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la biblioteca HuggingFace Transformers, específicamente en la clase “Trainer”, permite la ejecución de código arbitrario. El método “_load_rng_state()” en “src/transformers/trainer.py” en la línea 3059 llama a “torch.load()” sin el parámetro “weights_only=True”. Este problema afecta a todas las versiones de la biblioteca que soportan “torchmayor o igual que 2.2” cuando se usan con versiones de PyTorch inferiores a 2.6, ya que el gestor de contexto “safe_globals()” no proporciona protección en estas versiones. Un atacante puede explotar esta vulnerabilidad suministrando un archivo de punto de control malicioso, como “rng_state.pth”, que puede ejecutar código arbitrario cuando se carga. El problema está resuelto en la versión v5.0.0rc3."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "huggingface",
          "product": "huggingface/transformers",
          "versions": [
            {
              "version": "unspecified",
              "lessThan": "v5.0.0rc3",
              "versionType": "custom",
              "status": "affected"
            }
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        }
      ]
    }
  ],
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
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  "references": [
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      "url": "https://github.com/huggingface/transformers/commit/03c8082ba4594c9b8d6fe190ca9bed0e5f8ca396",
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