CVSS 4.0
9.3 criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-44484
Critical (9.3) in lightningai pytorch lightning. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in lightning 2.6.4.
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.
Severity
CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-506, CWE-829
- Published
- Modified
- Record from
- the NVD, synced
Affected
- lightningai:pytorch_lightning
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-w37p-236h-pfx3 | PyPI | pytorch-lightning | 2.6.2 | no fix published |
| GHSA-w37p-236h-pfx3 | PyPI | pytorch-lightning | 2.6.3 | no fix published |
| PYSEC-2026-3973 | PyPI | lightning | >=2.6.2 <2.6.4 | 2.6.4 |
| PYSEC-2026-508 | PyPI | pytorch-lightning | >=2.6.2 <2.6.4 | 2.6.4 |