CVE-2024-8019
Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
9.1
Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
CVE-2024-8019- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2025-6932
9.1
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
EUVD-2025-6932- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4cv3-v7pv-rfhf
9.1
PyTorch Lightning path traversal vulnerability
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
GHSA-4cv3-v7pv-rfhf- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
NVD
9.1
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
CVE-2024-8019- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
9.1
Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
CVE-2024-8019- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSVGHSA-4cv3-v7pv-rfhf
9.1
PyTorch Lightning path traversal vulnerability
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
GHSA-4cv3-v7pv-rfhf- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSVPYSEC-2026-3970
9.1
PyTorch Lightning path traversal vulnerability
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
PYSEC-2026-3970- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
OSVPYSEC-2026-507
9.1
PyTorch Lightning path traversal vulnerability
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
- Record
PYSEC-2026-507- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pytorch-lightningPyPI |
before 2.4.0 | 2.4.0 |
pytorch-lightningPyPI |
before 2.4.0, plus listed versions 0.0.20.10.00.20.2.20.2.3 Show 45 moreShow less0.2.40.2.4.10.2.50.2.5.10.2.5.20.2.60.30.3.10.3.20.3.30.3.40.3.4.10.3.50.3.60.3.6.10.3.6.30.3.6.40.3.6.50.3.6.60.3.6.70.3.6.80.3.6.90.4.00.4.10.4.20.4.30.4.40.4.50.4.60.4.70.4.80.4.90.5.00.5.10.5.1.20.5.1.30.5.20.5.2.10.5.30.5.3.10.5.3.20.5.3.30.6.00.7.10.7.3 |
2.4.0 |
lightningPyPI |
before 2.4.0, plus listed versions 0.0.20.10.00.20.2.20.2.3 Show 45 moreShow less0.2.40.2.4.10.2.50.2.5.10.2.5.20.2.60.30.3.10.3.20.3.30.3.40.3.4.10.3.50.3.60.3.6.10.3.6.30.3.6.40.3.6.50.3.6.60.3.6.70.3.6.80.3.6.90.4.00.4.10.4.20.4.30.4.40.4.50.4.60.4.70.4.80.4.90.5.00.5.10.5.1.20.5.1.30.5.20.5.2.10.5.30.5.3.10.5.3.20.5.3.30.6.00.7.10.7.3 |
2.4.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-8019 is a critical vulnerability (CVSS 9.1) in Lightning-ai Lightning-ai/pytorch-lightning, published March 20, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. Fixed in pytorch-lightning 2.4.0.
References
huntr.com/bounties/2754298b-5af5-48ef-8b38-999093ddf2bd
github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418a341cbc1f9f127f9a
nvd.nist.gov/vuln/detail/CVE-2024-8019
github.com/advisories/GHSA-4cv3-v7pv-rfhf
github.com/CVEProject/cvelistV5/tree/main/cves/2024/8xxx/CVE-2024-8019.json
github.com/pytorch/pytorch
pypi.org/project/pytorch-lightning
Left out here: 338 versions. The JSON record has them.