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CVE-2026-47429

Vitest: Arbitrary file can be read and executed when Vitest UI server is listening

Published: Jul 14, 2026Updated: Jul 21, 2026 Sources: CVE List NVDCWE-22
9.8CRITICAL
NVD MITRE
EPSS Score
1.0%
Top 40.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-22

Affected Products

vitest-dev
oss-projectaka vitest
vitestLibrary
DevTools & CI / build-test-tools

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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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/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwp
github.com
https://github.com/vitest-dev/vitest/pull/10445
github.com
https://github.com/vitest-dev/vitest/pull/9350
github.com
and 4 more references View all →

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