What is the CVSS score of CVE-2024-8019?

CVE-2024-8019 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. EPSS exploitation probability: 1.1%.

Which versions of Windows are affected by CVE-2024-8019?

Organizations using lightning-ai/pytorch-lightning face critical risk from CVE-2024-8019, a unrestricted file upload vulnerability rated CVSS 9.1.. A patch is available.

Is there a public PoC exploit available for CVE-2024-8019?

Yes, a public proof-of-concept exploit is available for CVE-2024-8019. Prioritise patching immediately. EPSS: 1.1%.

How to fix or mitigate CVE-2024-8019?

Within 24 hours: Identify all affected systems running lightning-ai/pytorch-lightning and apply vendor patches immediately. Review file handling controls and restrict upload directories.

Windows CVE-2024-8019

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-03-20 security@huntr.dev

Windows RCE Microsoft File Upload AI / ML Pytorch Pytorch Lightning Lightningai

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:32 vuln.today

Patch released

Mar 28, 2026 - 18:32 nvd

Patch available

PoC Detected

Aug 01, 2025 - 01:42 vuln.today

Public exploit code

CVE Published

Mar 20, 2025 - 10:15 nvd

CRITICAL 9.1

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

21 pypi packages depend on pytorch-lightning (20 direct, 1 indirect)

Ecosystem-wide dependent count for version 2.4.0.

DescriptionCVE.org

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.

AnalysisAI

In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. 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. Affected products include: Lightningai Pytorch Lightning. Version information: version 2.3.2.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.