What’s Vulnerable › Vulnerabilities

CVE-2026-73653: Vitest: Browser Mode provider commands bypass the file-access permission gate

• Severity: critical (CVSS 9.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-09-09
• Weakness: CWE-22

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 products

• vitest-dev vitest: before 3.2.7; from 4.0.0, < 4.1.10; from 5.0.0-beta.1, < 5.0.0-beta.6

References

• https://github.com/vitest-dev/vitest/commit/33f96a145ef09ca6a43b4e555eb273e64a87be23
• https://github.com/vitest-dev/vitest/commit/5c18dd267ff7f47f24cab2f615a16b37d90feb7f
• https://github.com/vitest-dev/vitest/commit/b795e36b34969bec50b47a9f29d26f799a6a04fb
• https://github.com/vitest-dev/vitest/pull/10674
• https://github.com/vitest-dev/vitest/pull/10679
• https://github.com/vitest-dev/vitest/pull/10680
• https://github.com/vitest-dev/vitest/releases/tag/v3.2.7
• https://github.com/vitest-dev/vitest/releases/tag/v4.1.10
• https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.6
• https://github.com/vitest-dev/vitest/security/advisories/GHSA-p63j-vcc4-9vmv

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