CVE-2023-34092— Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)
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I. Basic Information for CVE-2023-34092
Vulnerability Information
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Vulnerability Title
Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vite provides frontend tooling. Prior to versions 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9, Vite Server Options (`server.fs.deny`) can be bypassed using double forward-slash (//) allows any unauthenticated user to read file from the Vite root-path of the application including the default `fs.deny` settings (`['.env', '.env.*', '*.{crt,pem}']`). Only users explicitly exposing the Vite dev server to the network (using `--host` or `server.host` config option) are affected, and only files in the immediate Vite project root folder could be exposed. This issue is fixed in vite@4.3.9, vite@4.2.3, vite@4.1.5, vite@4.0.5, vite@3.2.7, and vite@2.9.16.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
路径等价：’//multiple/leading/slash’
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vite 安全漏洞
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 2.9.16版本、3.2.7版本、4.0.5版本、4.1.5版本、4.2.3版本、4.3.9版本存在安全漏洞。攻击者利用该漏洞从应用程序的Vite根路径读取文件。
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-2023-34092
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | test-cve-2023-34092 | https://github.com/FlapyPan/test-cve-2023-34092 | POC Details |
| 2 | Vite dev server could allow reading files from the Vite project root by bypassing server.fs.deny with double forward-slash paths (//). This affects exposed dev servers only. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-34092.yaml | POC Details |
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- https://github.com/vitejs/vite/pull/13348x_refsource_MISC
- https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-34092
IV. Related Vulnerabilities
Same product: vite
- CVE-2026-39365
Vite has a Path Traversal in Optimized Deps `.map` Handling - CVE-2026-39364
Vite has a `server.fs.deny` bypass with queries - 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
Same vendor: vitejs
- CVE-2026-39365
Vite has a Path Traversal in Optimized Deps `.map` Handling - CVE-2026-39364
Vite has a `server.fs.deny` bypass with queries - 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
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