Bug 2500573 (CVE-2026-47429)

Summary:	CVE-2026-47429 vitest: Vitest: Arbitrary code execution and information disclosure via path traversal
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anujha, aruklets, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, cdrage, dbruscin, dlofthou, doconnor, drichtar, dschmidt, ehugonne, istudens, ivassile, iweiss, jlanda, kaycoth, kshier, kvanderr, mosmerov, mposolda, msvehla, nwallace, pberan, pesilva, pjindal, pmackay, rmartinc, rstancel, rushinde, simaishi, ssilvert, stcannon, sthorger, teagle, thjenkin, vdosoudi, vmuzikar, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Vitest, a testing framework. On Windows, the Vitest UI/API server incorrectly handled file serving, which could allow an attacker to read sensitive files outside the project directory. Additionally, exposed API features could be exploited to execute arbitrary scripts, leading to potential system compromise.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-07-14 20:03:43 UTC

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.