cvedb.io
CVE-2026-1839
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2026-04-07T06:16:41.490 · Last modified 2026-06-17T10:16:35.823

Summary

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.

Affected products

huggingface — transformers

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.