CVE-2026-58659 PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass...

CVE-2026-58659

Summary: CVE-2026-58659 affects PyTorch Lightning up to version 2.6.5. The vulnerability lies in the _load_state function, which can import and execute attacker-controlled module names from the checkpoint _instantiator hyperparameters, enabling remote code execution when LightningModule.load_from...

CVE-2026-58659

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass...

CVE-2026-58659 PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass...

CVE-2026-58659 PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass...

CVE-2026-58659: Use of Externally-Controlled Input to Select Classes or Code

PyTorch Lightning through 2.6.5, fixed in commit d710d68, contains a remote code execution vulnerability in the loadstate function that imports and executes attacker-controlled module names from checkpoint instantiator hyperparameters. Attackers can craft malicious checkpoint files that bypass...

PT-2026-60248

Name of the Vulnerable Software and Affected Versions PyTorch Lightning versions prior to 2.6.6 Description A remote code execution issue exists in the load state function. The flaw allows the import and execution of attacker-controlled module names from checkpoint instantiator hyperparameters. A...

PT-2026-85358

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...

azureml-designer-classic-modules (>=0.0.127, <=0.0.129), azureml-designer-cv-modules (>=0.0.8, <=0.0.10) +17 more potentially affected by CVE-2026-59197 via pillow (7.1.0)

pillow PYPI version 7.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pillow and may be impacted: - azureml-designer-classic-modules =0.0.127, =0.0.8, =0.0.10, =0.0.7, =0.0.7, =0.0.2, =0.3.1, =0.1.1, =0.0.2, =0.0.1, =0.0.4, =0.0.3, =0.1.0 - qweb...

azureml-designer-classic-modules (>=0.0.127, <=0.0.129), azureml-designer-cv-modules (>=0.0.8, <=0.0.10) +17 more potentially affected by CVE-2026-59205 via pillow (7.1.0)

pillow PYPI version 7.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pillow and may be impacted: - azureml-designer-classic-modules =0.0.127, =0.0.8, =0.0.10, =0.0.7, =0.0.7, =0.0.2, =0.3.1, =0.1.1, =0.0.2, =0.0.1, =0.0.4, =0.0.3, =0.1.0 - qweb...

azureml-designer-classic-modules (>=0.0.127, <=0.0.129), azureml-designer-cv-modules (>=0.0.8, <=0.0.10) +17 more potentially affected by CVE-2026-59199 via pillow (7.1.0)

pillow PYPI version 7.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pillow and may be impacted: - azureml-designer-classic-modules =0.0.127, =0.0.8, =0.0.10, =0.0.7, =0.0.7, =0.0.2, =0.3.1, =0.1.1, =0.0.2, =0.0.1, =0.0.4, =0.0.3, =0.1.0 - qweb...

pytorch-vision-classifier (>=0.0.4, <=0.0.8), train-and-deploy (>=0.1.1a0, <=0.1.4) +2 more potentially affected by CVE-2026-4137 via mlflow (1.10.0)

mlflow PYPI version 1.10.0 is affected by a known vulnerability. The following packages have a transitive dependency on mlflow and may be impacted: - pytorch-vision-classifier =0.0.4, =0.1.1a0, =0.4.1, =0.4.2 - waveletai 0.2.4 Source cves: CVE-2026-4137 Source advisory: OSV:PYSEC-2026-2655...

llm-foundry (>=0.9.1, <=0.10.0), mlflow-pytorch-exp (0.0.1) potentially affected by CVE-2026-4137 via mlflow (2.14.3)

mlflow PYPI version 2.14.3 is affected by a known vulnerability. The following packages have a transitive dependency on mlflow and may be impacted: - llm-foundry =0.9.1, =0.10.0 - mlflow-pytorch-exp 0.0.1 Source cves: CVE-2026-4137 Source advisory: OSV:PYSEC-2026-2655...

argos-trains (0.1.0), fastmri (>=0.1.0.post210716, <=0.1.1) +5 more potentially affected by CVE-2026-31221 via pytorch-lightning (1.0.8)

pytorch-lightning PYPI version 1.0.8 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - argos-trains 0.1.0 - fastmri =0.1.0.post210716, =0.5.1, =0.5.3 - quickvision 0.1.1rc1 - raylab 0.14.12 Source cves:...

mimikit (>=0.1.0, <=0.1.10), pytorch-hyperlight (0.1.3) potentially affected by CVE-2026-31221 via pytorch-lightning (1.1.2)

pytorch-lightning PYPI version 1.1.2 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - mimikit =0.1.0, =0.1.10 - pytorch-hyperlight 0.1.3 Source cves: CVE-2026-31221 Source advisory: OSV:PYSEC-2026-3043...

lightning-flash (>=0.1.0, <=0.2.1) potentially affected by CVE-2026-31221 via pytorch-lightning (1.2.0rc0)

pytorch-lightning PYPI version 1.2.0rc0 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - lightning-flash =0.1.0, =0.2.1 Source cves: CVE-2026-31221 Source advisory: OSV:PYSEC-2026-3043...

PYSEC-2026-3043 PyTorch Lightning load_from_checkpoint has an insecure checkpoint deserialization

PyTorch-Lightning versions 2.6.0 and earlier contain an insecure deserialization vulnerability CWE-502 in the checkpoint loading mechanism. The LightningModule.loadfromcheckpoint method, which is commonly used to load saved model states, internally calls torch.load without setting the...

chatmof (>=0.1.1, <=0.2.2), finetuning-scheduler (0.2.0) +2 more potentially affected by CVE-2026-31221 via pytorch-lightning (1.7.0)

pytorch-lightning PYPI version 1.7.0 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - chatmof =0.1.1, =1.1.2, =0.3.7, =0.3.11 Source cves: CVE-2026-31221 Source advisory: OSV:PYSEC-2026-3043...

moai-mdk (>=0.1.0a1, <=0.1.0a2) potentially affected by CVE-2026-31221 via pytorch-lightning (1.0.7)

pytorch-lightning PYPI version 1.0.7 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - moai-mdk =0.1.0a1, =0.1.0a2 Source cves: CVE-2026-31221 Source advisory: OSV:PYSEC-2026-3043...

cluster-depp-test (0.0.2), depp (>=0.1.9, <=0.2.3) +2 more potentially affected by CVE-2026-31221 via pytorch-lightning (1.0.5)

pytorch-lightning PYPI version 1.0.5 is affected by a known vulnerability. The following packages have a transitive dependency on pytorch-lightning and may be impacted: - cluster-depp-test 0.0.2 - depp =0.1.9, =0.0.1, =0.0.3 - pytorch-lightning-help 0.0.1 Source cves: CVE-2026-31221 Source...