CVE-2026-39365
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Vite
PublishedApr 7, 2026
First seenApr 7, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- vite8.0.5, 7.3.2, 6.4.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vitejs vite | 6.0.0 ≤ v ≤ 6.4.1, 7.0.0 ≤ v ≤ 7.3.1, 8.0.0 ≤ v ≤ 8.0.4 | — |
| voidzero vite\+ | v ≤ 0.1.15 | — |
| vitenpm | 8.0.0 ≤ v < 8.0.5, 7.0.0 ≤ v < 7.3.2, v < 6.4.2 | 8.0.5, 7.3.2, 6.4.2 |
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