CVE-2026-73653: Vitest: Browser Mode provider commands bypass the file-access permission gate
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Vitestto a version that resolves this vulnerability.Fixed in 3.2.7 - Upgrade
Upgrade
Vitestto a version that resolves this vulnerability.Fixed in 4.1.10 - Upgrade
Upgrade
Vitestto a version that resolves this vulnerability.Fixed in 5.0.0-beta.6
Event History
Frequently Asked Questions
What is the severity of CVE-2026-73653?
CVE-2026-73653 has a critical severity rating of 9.4.
How do I fix CVE-2026-73653?
To mitigate CVE-2026-73653, upgrade to Vitest versions 3.2.7, 4.1.10, or 5.0.0-beta.6 or later.
What impact does CVE-2026-73653 have on my system?
CVE-2026-73653 allows unauthorized file access due to improper handling of file paths in the Browser Mode provider commands of Vitest.
What versions of Vitest are affected by CVE-2026-73653?
CVE-2026-73653 affects Vitest versions prior to 3.2.7, 4.1.10, and 5.0.0-beta.6.
What is the nature of the vulnerability in CVE-2026-73653?
CVE-2026-73653 is a path traversal vulnerability allowing bypass of file-access permission restrictions.