What’s Vulnerable › Vulnerabilities
CVE-2026-39365: Vite has a Path Traversal in Optimized Deps `.map` Handling
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-04-07 · updated 2026-07-24
- Weakness: CWE-22
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
- vitejs vite: from 6.0.0 through 6.4.1; from 7.0.0 through 7.3.1; from 8.0.0 through 8.0.4
- Voidzero Vite+: through 0.1.15
References
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