Report: - Arbitrary Code Execution via Unsafe torch.load() in Trainer Checkpoint Loading in... CVE-2026-1839

Report: - Arbitrary Code Execution via Unsafe torch.load() in Trainer Checkpoint Loading in... CVE-2026-1839

CVE ID :CVE-2026-1839 Published : April 7, 2026, 5:22 a.m. | 14 minutes ago Description :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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
April 7, 2026
Impact: code execution