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CVE-2026-44484— Compromise of PyTorch Lightning PyPi Package Versions

Quick assessment

Affected
Lightning-AI pytorch-lightning
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PyTorch Lightning是Lightning AI开源的一款深度学习模型预训练与微调框架。 PyTorch Lightning 2.6.2版本和2.6.2版本存在安全漏洞，该漏洞源于引入了与凭据收集机制一致的功能。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.67% · P51

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials

Affected Version Matrix 2

VendorProduct Version RangeStatus
Lightning-AI pytorch-lightning 2.6.2 affected
2.6.3 affected
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I. Basic Information for CVE-2026-44484

Vulnerability Information
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Vulnerability Title
Compromise of PyTorch Lightning PyPi Package Versions
Source: CVE Program / CVE List V5
Vulnerability Description
PyTorch Lightning is a deep learning framework to pretrain and finetune AI models. Versions 2.6.2 and 2.6.2 have introduced functionality consistent with a credential harvesting mechanism.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
内嵌的恶意代码
Source: CVE Program / CVE List V5
Vulnerability Title
PyTorch Lightning 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PyTorch Lightning是Lightning AI开源的一款深度学习模型预训练与微调框架。 PyTorch Lightning 2.6.2版本和2.6.2版本存在安全漏洞，该漏洞源于引入了与凭据收集机制一致的功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Lightning-AI pytorch-lightning 2.6.2 -

II. Public POCs for CVE-2026-44484

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III. Intelligence Information for CVE-2026-44484

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Vendor Advisories for CVE-2026-44484 (1)

IV. Related Vulnerabilities

Same product: pytorch-lightning
Same vendor: Lightning-AI
Same weakness: CWE-506

V. Comments for CVE-2026-44484

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