Description
Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-47428 ↗
- github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06 ↗
- github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa ↗
- github.com/vitest-dev/vitest/pull/10283 ↗
- github.com/vitest-dev/vitest/pull/10285 ↗
- github.com/vitest-dev/vitest/releases/tag/v4.1.6 ↗
- github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3 ↗
- github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.