CVE-2026-39365

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.

References

https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-19875

Details

Source: Mitre, NVD

Named Vulnerability: GHSA-4w7w-66w2-5vf9

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS