—
PYSEC-2026-3624
Quick fix
PYSEC-2026-3624 — lightning: upgrade to the fixed version with the command below.
pip install --upgrade 'lightning>=2022.6.15'Details
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.
Are you affected?
Enter the version of the package you're using.
Affected packages
PyPI / lightning
Introduced in:
0 Fixed in: 2022.6.15 Fix
pip install --upgrade 'lightning>=2022.6.15' References
- https://github.com/Lightning-AI/pytorch-lightning/issues/21822 [REPORT]
- https://github.com/Lightning-AI/pytorch-lightning/commit/d710d689510d50e800f53b3cd773cbca20b1f86f [FIX]
- https://github.com/Lightning-AI/pytorch-lightning/pull/21832 [FIX]
- https://www.vulncheck.com/advisories/pytorch-lightning-arbitrary-code-execution-via-instantiator-hyperparameter [FIX]