PyTorch Lightning denial of service vulnerability
A vulnerability in lightning-ai/pytorch-lightning version 2.3.2 allows an attacker to cause a denial of service by sending an unexpected POST request to the /api/v1/state endpoint of LightningApp. This issue occurs due to improper handling of unexpected state values, which results in the server shutting down.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | lightning | <= 2.3.2 | no fix |
| Python (PyPI) | pytorch-lightning | <= 2.3.2 | no fix |
References
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-248- Platform
- Python (PyPI)
- Package
lightning, pytorch-lightning- Disclosed
- 20.03.2025
- Updated
- 11.10.2026 15:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1857 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-98fp-7v67-4v3q - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-3971 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: lightning
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 12.2021 07.2026
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 4
Disclosures per year
- 2021: 1
- 2022: 1
- 2023: 0
- 2024: 2
- 2025: 2
- 2026: 3
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PyTorch Lightning denial of service vulnerability this entry
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