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7.5HIGH

Backdoored PyTorch Lightning package drops credential stealer

📅 4 May 2026 at 17:15 UTC📰 Bleeping ComputerView original source ↗
Backdoored PyTorch Lightning package drops credential stealer

A malicious version of the PyTorch Lightning package published on the Python Package Index (PyPI) delivers a credential-stealing payload targeting browsers, environment files, and cloud services. [...]

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

A malicious PyTorch Lightning package version 2.6.3 was published on PyPI, delivering a credential-stealing payload that targets browsers, environment files, and cloud services through a supply-chain attack.

⚙️Technical Details
Affected Systems
Browsers (Chrome, Firefox, Brave)Environment files (.env)Cloud services (AWS, Azure, GCP)
Attack Vectors
PyPI package downloadBackground process execution
💥Impact Assessment
Severity: High
Who Is at Risk
Users who installed version 2.6.3 of PyTorch Lightning and ran the 'import lightning' command
🛡️Recommended Actions
1Immediately update to version 2.6.1 of PyTorch Lightning from PyPI
2Rotate all secrets, keys, and tokens
3Monitor system logs for suspicious activity
📦Affected Products
Product Name: PyTorch LightningVersion Affected: 2.6.3

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