What’s Vulnerable › Vulnerabilities

CVE-2024-8019: Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-03-20 · updated 2026-06-17
• Weakness: CWE-434

Description

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

• lightning-ai/pytorch-lightning: 2.3.2

References

• https://github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418a341cbc1f9f127f9a
• https://huntr.com/bounties/2754298b-5af5-48ef-8b38-999093ddf2bd

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