CVE-2026-44484 PUBLISHED

Compromise of PyTorch Lightning PyPi Package Versions

Assigner: GitHub_M
Reserved: 06.05.2026 Published: 14.05.2026 Updated: 14.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Lightning-AI
Product	pytorch-lightning
Versions	Version 2.6.2 is affected Version 2.6.3 is affected

References

https://github.com/Lightning-AI/pytorch-lightning/security/advisories/GHSA-w37p-236h-pfx3

Problem Types

CWE-506: Embedded Malicious Code CWE