CVE-2026-39365— Vite has a Path Traversal in Optimized Deps `.map` Handling
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-39365
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Vite has a Path Traversal in Optimized Deps `.map` Handling
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vite 路径遍历漏洞
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 6.0.0至6.4.2之前版本、7.3.2之前版本和8.0.5之前版本存在路径遍历漏洞，该漏洞源于对.map请求的路径遍历限制不足，可能导致绕过允许列表并检索项目根目录外的文件。
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-2026-39365
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Vite development server versions prior to 8.0.5, 7.3.2, and 6.4.2 are vulnerable to path traversal through the optimized dependencies sourcemap handler. The dev server's handling of .map requests for optimized dependencies resolves file paths via normalizePath(path.resolve(root, url.slice(1))) and calls readFile without restricting ../ segments in the URL. This allows an attacker to bypass server.fs.strict and retrieve auto-generated sourcemaps for files located outside the project root, leaking absolute filesystem paths. Only dev servers explicitly exposed to the network using --host or server.host are affected. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-39365.yaml | POC Details |
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-39365
请登录查看更多情报信息。
Same Patch Batch · vitejs · 2026-04-07 · 3 CVEs total
| 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 WebSocket |
IV. Related Vulnerabilities
Same product: vite
- 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 - CVE-2025-58751
Vite middleware may serve files starting with the same name
Same vendor: vitejs
- 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 - CVE-2025-62522
vite allows server.fs.deny bypass via backslash on Windows
Same weakness: CWE-22
- CVE-2026-8274
npitre cramfs-tools Directory cramfsck.c do_directory path t - CVE-2022-50956
WordPress Plugin amministrazione-aperta 3.7.3 Local File Rea - CVE-2026-8215
Industrial Application Software IAS Canias ERP RMI iasReques - CVE-2026-42605
AzuraCast: Path Traversal in `currentDirectory` Parameter En - CVE-2026-42574
apko dirFS has a symlink-following path traversal that allow
V. Comments for CVE-2026-39365
No comments yet