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CVE-2025-46565— Vite's server.fs.deny bypassed with /. for files under project root

Quick assessment

Affected
vitejs vite
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vite是Vite开源的一种新型的前端构建工具。 Vite 6.3.4之前版本存在安全漏洞，该漏洞源于文件匹配模式绕过，可能导致信息泄露。

AI Predicted 8.2 Difficulty: Easy EPSS 1.17% · P66

Public Exploits 1

Nuclei · 1 CVE-2025-46565.yaml [template]
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I. Basic Information for CVE-2025-46565

Vulnerability Information
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Vulnerability Title
Vite's server.fs.deny bypassed with /. for files under project root
Source: CVE Program / CVE List V5
Vulnerability Description
Vite is a frontend tooling framework for javascript. Prior to versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14, the contents of files in the project root that are denied by a file matching pattern can be returned to the browser. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. Only files that are under project root and are denied by a file matching pattern can be bypassed. `server.fs.deny` can contain patterns matching against files (by default it includes .env, .env.*, *.{crt,pem} as such patterns). These patterns were able to bypass for files under `root` by using a combination of slash and dot (/.). This issue has been patched in versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
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 6.3.4之前版本存在安全漏洞，该漏洞源于文件匹配模式绕过，可能导致信息泄露。
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

Vendor Product Affected Versions CPE Subscribe
vitejs vite >= 6.3.0, < 6.3.4 -

II. Public POCs for CVE-2025-46565

# POC Description Source Link Shenlong Link
1 Vite is a frontend tooling framework for JavaScript. Before versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14, the contents of files in the project root that are denied by a file matching pattern can be returned to the browser. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. Only files that are under project root and are denied by a file matching pattern can be bypassed. `server.fs.deny` can contain patterns matching against files (by default it includes .env, .env.*, *.{crt,pem} as such patterns). These patterns were able to bypass for files under `root` by using a combination of slash and dot (/.). This issue has been patched in versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-46565.yaml POC Details
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III. Intelligence Information for CVE-2025-46565

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Patches & Fixes for CVE-2025-46565 (1)

Vendor Advisories for CVE-2025-46565 (1)

IV. Related Vulnerabilities

Same product: vite
Same vendor: vitejs
Same weakness: CWE-22

V. Comments for CVE-2025-46565

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