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9.6 Critical

CVE-2026-47428 Vitest is a testing framework powered by Vite

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.

Affected products and versions

Product Affected versions Fixed in
vitest 5.0 5.0.0-beta.0 → < 5.0.0-beta.3 5.0.0-beta.3
vitest 4.0 4.0.17 → < 4.1.6 4.1.6
The 10 CVEs of vitest →
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