CVE-2026-39365
MEDIUM WAF: High
CVSS 5.3
Published: 2026-04-07
CWE-22
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.
WAF Coverage Analysis
Path Traversal
High WAF Coverage
OWASP: A01:2021 Broken Access Control
930xxx - Local File Inclusion
Affected Software
| Vendor | Product | Version |
|---|---|---|
| vitejs | vite | 6.0.0 - 6.4.1 |
| vitejs | vite | 7.0.0 - 7.3.1 |
| vitejs | vite | 8.0.0 - 8.0.4 |
| vitejs | vite-plus | up to 0.1.15 |
References
- github.com (Exploit, Vendor Advisory)