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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
vitejs vite affected
Version Status Constraints
>= 8.0.0, < 8.0.5 affected —
>= 7.0.0, < 7.3.2 affected —
>= 6.0.0, < 6.4.2 affected —
vitejs vite-plus affected
Version Status Constraints
< 0.1.16 affected —

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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-4w7w-66w2-5vf9 Vite Vulnerable to Path Traversal in Optimized Deps `.map` Handling
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9 cve-icon cve-icon
History

Tue, 07 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Vite has a Path Traversal in Optimized Deps `.map` Handling
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-07T19:13:50.927Z

Reserved: 2026-04-06T21:29:17.349Z

Link: CVE-2026-39365

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-07T20:16:30.350

Modified: 2026-04-07T20:16:30.350

Link: CVE-2026-39365

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses