CVE-2024-23331— Vite dev server option `server.fs.deny` can be bypassed when hosted on case-insensitive filesystem
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I. Basic Information for CVE-2024-23331
Vulnerability Information
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Vulnerability Title
Vite dev server option `server.fs.deny` can be bypassed when hosted on case-insensitive filesystem
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vite is a frontend tooling framework for javascript. The Vite dev server option `server.fs.deny` can be bypassed on case-insensitive file systems using case-augmented versions of filenames. Notably this affects servers hosted on Windows. This bypass is similar to CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems. Since `picomatch` defaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible. By requesting raw filesystem paths using augmented casing, the matcher derived from `config.server.fs.deny` fails to block access to sensitive files. This issue has been addressed in vite@5.0.12, vite@4.5.2, vite@3.2.8, and vite@2.9.17. Users are advised to upgrade. Users unable to upgrade should restrict access to dev servers.
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
大小写敏感处理不恰当
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存在安全漏洞，该漏洞源于文件系统不区分大小写。
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-2024-23331
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- https://vitejs.dev/config/server-options.html#server-fs-denyx_refsource_MISC
- https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vwx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-23331
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
Same weakness: CWE-178
- CVE-2026-3833
Gnutls: gnutls: policy bypass due to case-sensitive namecons - CVE-2026-40453
Apache Camel JMS, Apache Camel CoAP, Apache Camel Google Pub - CVE-2026-22665
prompts.chat Identity Confusion via Case-Sensitive Username - CVE-2026-33691
OWASP CRS: Whitespace padding in filenames bypasses file upl - CVE-2026-3532
OpenID Connect / OAuth client - Less critical - Access bypas
V. Comments for CVE-2024-23331
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