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[GHSA-qqmf-gpg7-g8gw] PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters #9439

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[GHSA-qqmf-gpg7-g8gw] PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters #9439

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12 changes: 6 additions & 6 deletions advisories/github-reviewed/2026/07/GHSA-qqmf-gpg7-g8gw/GHSA-qqmf-gpg7-g8gw.json
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Original file line number Diff line number Diff line change
@@ -1,18 +1,14 @@
{
"schema_version": "1.4.0",
"id": "GHSA-qqmf-gpg7-g8gw",
"modified": "2026-09-03T19:51:19Z",
"modified": "2026-09-03T19:51:20Z",
"published": "2026-07-15T18:31:58Z",
"aliases": [
"CVE-2026-58659"
],
"summary": " PyTorch Lightning allows arbitrary code execution through checkpoint _instantiator hyperparameters",
"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.",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
Expand All @@ -32,7 +28,7 @@
"introduced": "0"
},
{
"fixed": "2022.6.15"
"fixed": "2.6.6"
}
]
}
Expand Down Expand Up @@ -60,6 +56,10 @@
"type": "PACKAGE",
"url": "https://github.com/Lightning-AI/pytorch-lightning"
},
{
"type": "WEB",
"url": "https://github.com/Lightning-AI/pytorch-lightning/releases/tag/2.6.6"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/lightning/PYSEC-2026-3624.yaml"
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