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HuggingFace transformers vulnerable to remote code execution

  • Publicada: 24.05.2026
  • Actualizado: 11.10.2026 15:17

A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to version 5.3.0. The vulnerability allows an attacker to craft a malicious config.json file containing the _attn_implementation_internal field set to an attacker-controlled HuggingFace Hub repository ID. When a victim loads this model using the standard AutoModelForCausalLM.from_pretrained() API, the library downloads and executes arbitrary Python code from the attacker's repository with the victim's full OS privileges. This issue arises due to unfiltered deserialization of configuration attributes, insufficient sanitization of internal fields, and unsandboxed execution of downloaded kernels. The vulnerability bypasses the trust_remote_code security mechanism, is invisible to the victim, and exploits the standard documented usage pattern, making it particularly severe. Users are advised to upgrade to version 5.3.0 or later to mitigate this issue.

Software afectado

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PlataformaPaqueteVersiones vulnerablesCorregida en
Python (PyPI) transformers < 5.3.0 5.3.0

Referencias

Puntuación CVSS 7.8/10
Vector CVSS
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Debilidad (CWE)
CWE-1066, CWE-502
Plataforma
Python (PyPI)
Paquete
transformers
Publicada
24.05.2026
Actualizado
11.10.2026 15:17

Fuentes y licencias

OSV / GitHub Advisory Database - PYSEC-2026-2289 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-29pf-2h5f-8g72 - CC BY 4.0

Historial de vulnerabilidades: transformers

Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.

Todas (32) en el archivo
Entradas en total
32
Primera → última
05.2023 09.2026
Sin corrección
9
Explotada en ataques
0

Distribución por gravedad

  • Alta 18
  • Media 12
  • Baja 2

Divulgaciones por año

Gravedad:
  1. Hugging Face Transformers downloads custom generation code before trust consent
    Alta · 7.8 CVE-2026-80047 >= 4.49.0, <= 5.8.1 sin corrección
  2. Transformers save_pretrained path traversal allows arbitrary file writes through chat template names
    Alta · 7.1 CVE-2026-9856 < 5.10.0 5.10.0
  3. huggingface/transformers: Arbitrary Code Execution During Model Initialization in the LightGlue Model Loading Path
    Alta · 8.0 CVE-2026-5241 < 5.5.0 5.5.0
  4. HuggingFace transformers vulnerable to remote code execution esta entrada
    Alta · 7.8 CVE-2026-4372 < 5.3.0 5.3.0
  5. Hugging Face Transformers GLM4 Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of
    Alta · 7.8 CVE-2025-14930 <= 4.57.1 sin corrección
  6. Hugging Face Transformers HuBERT convert_config Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hu
    Alta · 7.8 CVE-2025-14928 <= 4.57.0 sin corrección
  7. Hugging Face Transformers X-CLIP Checkpoint Conversion Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on af
    Alta · 7.8 CVE-2025-14929 <= 5.0.0-rc0 sin corrección
  8. Hugging Face Transformers SEW convert_config Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Huggi
    Alta · 7.8 CVE-2025-14926 <= 4.57.0 sin corrección
  9. Hugging Face Transformers SEW-D convert_config Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hug
    Alta · 7.8 CVE-2025-14927 <= 4.57.0 sin corrección
  10. Hugging Face Transformers Perceiver Model Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected instal
    Alta · 7.8 CVE-2025-14920 <= 4.54.1 sin corrección
  11. Hugging Face Transformers Transformer-XL Model Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected i
    Alta · 7.8 CVE-2025-14921 <= 4.54.1 sin corrección
  12. Hugging Face Transformers megatron_gpt2 Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installa
    Alta · 7.8 CVE-2025-14924 <= 4.55.0 sin corrección
  13. A vulnerability in the `preprocess_string()` function of the `transformers.testing_utils` module in huggingface/transformers version v4.48.3 allows for a Regular Expression Denial of Service (ReDoS) a
    Alta · 7.5 CVE-2025-2099 < 4.49.0 4.49.0
  14. Deserialization of Untrusted Data in Hugging Face Transformers
    Alta · 8.8 CVE-2024-11394 < 4.48.0 4.48.0
  15. Deserialization of Untrusted Data in Hugging Face Transformers
    Alta · 8.8 CVE-2024-11393 < 4.48.0 4.48.0
  16. Deserialization of Untrusted Data in Hugging Face Transformers
    Alta · 7.5 CVE-2024-11392 < 4.48.0 4.48.0
  17. Deserialization of Untrusted Data in GitHub repository huggingface/transformers prior to 4.36.
    Alta · 7.8 CVE-2023-7018 < 4.36.0 4.36.0
  18. Deserialization of Untrusted Data in GitHub repository huggingface/transformers prior to 4.36.
    Alta · 8.8 CVE-2023-6730 < 4.36.0 4.36.0

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