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CVE-2026-58659

PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter PUBLISHED

Description (CNA)

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the _load_state function that imports and executes attacker-controlled module names from checkpoint _instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass weights_only=True protections to execute arbitrary code when LightningModule.load_from_checkpoint is called.

Affected (CNA)

Vendor / productVersions
Lightning-AI / pytorch-lightningaffected 0 through 2.6.5; unaffected d710d689510d50e800f53b3cd773cbca20b1f86f

CWE

CWE-470

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.