CVE-2026-39364— Vite has a `server.fs.deny` bypass with queries
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I. Basic Information for CVE-2026-39364
Vulnerability Information
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Vulnerability Title
Vite has a `server.fs.deny` bypass with queries
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vite is a frontend tooling framework for JavaScript. From 7.1.0 to before 7.3.2 and 8.0.5, on the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended. This vulnerability is fixed in 7.3.2 and 8.0.5.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不正确的行为次序：规范化之前验证
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vite 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vite是Vite开源的一种新型的前端构建工具。 Vite 7.1.0至7.3.2之前版本和8.0.5之前版本存在访问控制错误漏洞，该漏洞源于服务器文件拒绝列表可被绕过，可能导致检索应被阻止的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-39364
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Vite is a modern frontend build tool. In Vite prior to versions 6.4.3, 6.3.4, and 5.4.23, a directory traversal vulnerability affects the Vite development server. When the Vite dev server is launched with the --host or server.host option, an unauthenticated attacker can craft a request with a path containing dot segments (e.g., /.vite/../<filename>) to bypass static file restrictions and access arbitrary files on the filesystem under the project root. The vulnerability allows access to files normally denied by Vite’s "server.fs.deny" setting, including sensitive files like .env, configuration files, or credentials in the project root. This issue has been fixed in versions 6.4.3, 6.3.4, and 5.4.23. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-39364.yaml | POC Details |
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Same Patch Batch · vitejs · 2026-04-07 · 3 CVEs total
| CVE-2026-39363 | Vite Affected by Arbitrary File Read via Vite Dev Server WebSocket | |
| CVE-2026-39365 | Vite has a Path Traversal in Optimized Deps `.map` Handling |
IV. Related Vulnerabilities
Same product: vite
- CVE-2026-39365
Vite has a Path Traversal in Optimized Deps `.map` Handling - CVE-2026-39363
Vite Affected by Arbitrary File Read via Vite Dev Server Web - CVE-2025-62522
vite allows server.fs.deny bypass via backslash on Windows - CVE-2025-58752
Vite's `server.fs` settings were not applied to HTML files - CVE-2025-58751
Vite middleware may serve files starting with the same name
Same vendor: vitejs
- CVE-2026-39365
Vite has a Path Traversal in Optimized Deps `.map` Handling - CVE-2026-39363
Vite Affected by Arbitrary File Read via Vite Dev Server Web - CVE-2025-68155
@vitejs/plugin-rsc has Arbitrary File Read via `/__vite_rsc_ - CVE-2025-67489
@vitejs/plugin-rsc Remote Code Execution through unsafe dyna - CVE-2025-62522
vite allows server.fs.deny bypass via backslash on Windows
Same weakness: CWE-180
V. Comments for CVE-2026-39364
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