CVE-2026-73653

CRITICAL 9.4

Vitest: Browser Mode provider commands bypass the file-access permission gate

CVSS Score

9.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-22 CWE-552 CWE-862
Vendor	vitest-dev
Product	vitest
Published	Aug 13, 2026
Last Updated	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Affected Versions

vitest-dev / vitest

< 3.2.7 >= 4.0.0, < 4.1.10 >= 5.0.0-beta.1, < 5.0.0-beta.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗