Vulnerability · Published Aug 13, 2026 · Assigned by GitHub_M
CVE-2026-73653Vitest: Browser Mode provider commands bypass the file-access permission gate
Critical 9.4
In plain English
A critical-severity path traversal in vitest from vitest-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @vitest/browser | 4.1.10 | GHSA-p63j-vcc4-9vmv |
| npm | @vitest/browser | 3.2.7 | GHSA-p63j-vcc4-9vmv |
| npm | @vitest/browser | 5.0.0-beta.6 | GHSA-p63j-vcc4-9vmv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vitest-dev | vitest | < 3.2.7>= 4.0.0, < 4.1.10>= 5.0.0-beta.1, < 5.0.0-beta.6 |
Weakness: CWE-22, CWE-552, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
References
- https://github.com/vitest-dev/vitest/security/advisories/GHSA-p63j-vcc4-9vmv x_refsource_CONFIRM
- https://github.com/vitest-dev/vitest/pull/10674 x_refsource_MISC
- https://github.com/vitest-dev/vitest/pull/10679 x_refsource_MISC
- https://github.com/vitest-dev/vitest/pull/10680 x_refsource_MISC
- https://github.com/vitest-dev/vitest/commit/33f96a145ef09ca6a43b4e555eb273e64a87be23 x_refsource_MISC
- https://github.com/vitest-dev/vitest/commit/5c18dd267ff7f47f24cab2f615a16b37d90feb7f x_refsource_MISC
- https://github.com/vitest-dev/vitest/commit/b795e36b34969bec50b47a9f29d26f799a6a04fb x_refsource_MISC
- https://github.com/vitest-dev/vitest/releases/tag/v3.2.7 x_refsource_MISC
- https://github.com/vitest-dev/vitest/releases/tag/v4.1.10 x_refsource_MISC
- https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.6 x_refsource_MISC