Critical 9.3Published May 14, 2026

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

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

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It affects Lightning-AI pytorch-lightning and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Lightning-AI pytorch-lightning

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, 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
Weakness (CWE): CWE-506, CWE-829
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Lightning-AI pytorch-lightning lightning_ai:pytorch_lightning (from the name)	2.6.2; 2.6.3	CNA record
Red Hat Red Hat AI Inference Server redhat:ai_inference_server	3	CISA ADP
Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3 redhat:enterprise_linux_ai	3	CISA ADP
Red Hat Red Hat OpenShift AI (RHOAI) redhat:openshift_ai	Versions not stated	CISA ADP
lightningai pytorch_lightning lightningai:pytorch_lightning	2.6.2; 2.6.3	NVD

References

References

https://github.com/Lightning-AI/pytorch-lightning/security/advisories/GHSA-w37p-236h-pfx3	x-refsource-confirm, mitigation, vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-44484
https://bugzilla.redhat.com/show_bug.cgi?id=2477476
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44484.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.