Compromise of PyTorch Lightning PyPi Package Versions
Priority MEDIUM 48CWE-506Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-506.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00392 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| lightning-ai | pytorch-lightning | 2.6.2; 2.6.3 | — | No fix listed | CNA |
| — | pytorch-lightning (PyPI) | — | — | No fix listed | GHSA-w37p-236h-pfx3 |
| — | pytorch-lightning (PyPI) | — | — | No fix listed | GHSA-w37p-236h-pfx3 |
- pytorch-lightning Vendorlightning-ai Affected 2.6.2; 2.6.3 Fixed in — No fix listed CNA
- pytorch-lightning (PyPI) Vendor— Affected — Fixed in — No fix listed GHSA-w37p-236h-pfx3
- pytorch-lightning (PyPI) Vendor— Affected — Fixed in — No fix listed GHSA-w37p-236h-pfx3
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lightningai:pytorch_lightning:2.6.2:*:*:*:*:python:*:* | 2.6.2 | Vulnerable | lightning-ai |
| cpe:2.3:a:lightningai:pytorch_lightning:2.6.3:*:*:*:*:python:*:* | 2.6.3 | Vulnerable | lightning-ai |
- cpe:2.3:a:lightningai:pytorch_lightning:2.6.2:*:*:*:*:python:*:* Versions 2.6.2 Vulnerable ·lightning-ai
- cpe:2.3:a:lightningai:pytorch_lightning:2.6.3:*:*:*:*:python:*:* Versions 2.6.3 Vulnerable ·lightning-ai
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat AI Inference Server
- Red Hat Enterprise Linux AI (RHEL AI) 3
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44484
- 2026-10-03 Alias added: GHSA-w37p-236h-pfx3
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More lightning-ai Pytorch Lightning vulnerabilities
- TI-2024-05067 RCE via Property/Class Pollution in lightning-ai/pytorch-lightning CVSS 3.1CRITICAL 9.8
- TI-2024-05541 Arbitrary File Write via /v1/runs API endpoint in lightning-ai/pytorch-lightning CVSS 3.1CRITICAL 9.8
- TI-2024-07433 Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning CVSS 3.1CRITICAL 9.1
- TI-2026-42224 PyTorch Lightning Arbitrary Code Execution via _instantiator Hyperparameter CVSS 4.0HIGH 8.4
- TI-2024-07434 Denial of Service in lightning-ai/pytorch-lightning CVSS 3.0HIGH 7.5
- TI-2022-00751 Code Injection in pytorchlightning/pytorch-lightning CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-44484 · CVE Program
- CVE-2026-44484 · NVD
- FIRST EPSS
- GHSA-w37p-236h-pfx3 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-44484 · Red Hat security data · CC BY 4.0
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