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CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-39365

Vite has a Path Traversal in Optimized Deps `.map` Handling

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

vitejs vite

  • >= 8.0.0, < 8.0.5affected
  • >= 7.0.0, < 7.3.2affected
  • >= 6.0.0, < 6.4.2affected

vitejs vite-plus

  • < 0.1.16affected

References