CVE-2026-39365: Vitejs Vite

Medium severity, CVSS 5.3. EPSS: 1% chance of exploitation in the next 30 days.

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

• Vitejs Vite: from 6.0.0, up to and including 6.4.1; from 7.0.0, up to and including 7.3.1; from 8.0.0, up to and including 8.0.4
• Voidzero Vite+: up to and including 0.1.15

Published 2026-04-07. Last modified 2026-07-24.