vitejs vite up to 6.4.1/7.3.1/8.0.4 path traversal

Summaryinfo

A vulnerability was found in vitejs vite up to 6.4.1/7.3.1/8.0.4. It has been declared as critical. Affected by this issue is some unknown functionality. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2026-39365. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in vitejs vite up to 6.4.1/7.3.1/8.0.4 and classified as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. CVE summarizes:

Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, the dev server’s handling of .map requests for optimized dependencies resolves file paths and calls readFile without restricting ../ segments in the URL. As a result, it is possible to bypass the server.fs.strict allow list and retrieve .map files located outside the project root, provided they can be parsed as valid source map JSON. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-39365 since 04/06/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 6.4.2, 7.3.2 or 8.0.5 eliminates this vulnerability.

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Productinfo

Vendor

• vitejs

Name

• vite

Version

• 6.4.0
• 6.4.1
• 7.3.0
• 7.3.1
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4

Website

• Product: https://github.com/vitejs/vite/

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