CVE-2026-44484 | PyTorch Lightning is a deep learning framework to pretrain a… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-44484
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-06 17:18 UTC
Published: 2026-05-14 14:59 UTC
Last updated: 2026-06-30 03:19 UTC
Primary CWE: CWE-506
CWE-506: Embedded Malicious Code
Vendor / Product: Lightning-AI / pytorch-lightning
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Lightning-AI	pytorch-lightning	—	2.6.2, 2.6.3

Weakness (CWE)

CWE	Source	Description
CWE-506	cna	CWE-506: Embedded Malicious Code
CWE-829	adp	Inclusion of Functionality from Untrusted Control Sphere

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	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

References (1)

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