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CVE-2026-39365

Vite has a Path Traversal in Optimized Deps `.map` Handling

Published: Apr 7, 2026Updated: Jul 24, 2026 Sources: CVE List NVDCWE-22
5.3MEDIUM
NVD MITRE
EPSS Score
0.9%
Top 43.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Nuclei

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-22

Affected Products

vitejs
oss-projectaka vite-plus, vite-plugin-react, vite
viteLibrary
DevTools & CI / build-test-tools
vite-plusLibrary
DevTools & CI / build-test-tools
voidzero
oss-projectaka vite+
vite\+Library
OSS Libraries / web-framework

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9
github.com

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