Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-58659

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 25.5%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-58659


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