Bug 2515536 (CVE-2026-73653)

Summary:	CVE-2026-73653 vitest: Vitest: Browser Mode provider commands bypass the file-access permission gate
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	unspecified	CC:	anujha, aruklets, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, cdrage, dbruscin, dlofthou, doconnor, drichtar, dschmidt, eborisov, ehugonne, istudens, ivassile, iweiss, jlanda, kshier, kvanderr, lball, mosmerov, mposolda, msvehla, ngough, nwallace, pberan, pesilva, pjindal, pmackay, rhel-process-autobot, rmartinc, rstancel, rushinde, simaishi, ssilvert, stcannon, sthorger, teagle, thjenkin, vdosoudi, veshanka, vmuzikar, watson-tool-maintainers, 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 remote attacker, by sending specially crafted commands to the Browser Mode API, could bypass file access restrictions. This allows the attacker to read, create, overwrite, or delete arbitrary files on the system where Vitest is running, even when file write permissions are explicitly disabled.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2526723, 2526724
Bug Blocks:

Description OSIDB Bzimport 2026-08-13 18:44:27 UTC

Vitest is a testing framework powered by Vite. Prior to versions 3.2.7, 4.1.10, and 5.0.0-beta.6, Browser Mode provider commands including upload, takeScreenshot, screenshotMatcher, stopChunkTrace, deleteTracing, and annotateTraces accept browser-supplied file paths without enforcing the allowWrite permission gate or confining paths to the project root. A client that can reach the Browser Mode API can read arbitrary local files, create or overwrite image and trace files, or delete files accessible to the Vitest process even when allowWrite is false. This issue is fixed in versions 3.2.7, 4.1.10, and 5.0.0-beta.6.