PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-58659US | — | — | ||
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 m… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/Lightning-AI/pytorch-lightningPACKAGE
- https://github.com/Lightning-AI/pytorch-lightning/commit/d710d689510d50e800f53b3cd773cbca20b1f86fWEB
- https://github.com/Lightning-AI/pytorch-lightning/issues/21822WEB
- https://github.com/Lightning-AI/pytorch-lightning/pull/21832WEB
- https://github.com/Lightning-AI/pytorch-lightning/releases/tag/2.6.6WEB
- https://github.com/advisories/GHSA-qqmf-gpg7-g8gwADVISORY
- https://github.com/pypa/advisory-database/tree/main/vulns/lightning/PYSEC-2026-3624.yamlWEB
- https://github.com/pypa/advisory-database/tree/main/vulns/pytorch-lightning/PYSEC-2026-3967.yamlWEB
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan