Missing Authorization Affecting vitest package, versions <3.2.5>=4.0.0-beta.1 <4.1.0-beta.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Jun 2026
- disclosed1 Jun 2026
- creditsapphi-red
Introduced: 1 Jun 2026
NewCVE-2026-47429 (opens in a new tab)How to fix?
Upgrade vitest to version 3.2.5, 4.1.0-beta.3 or higher.
Overview
vitest is a Next generation testing framework powered by Vite
Affected versions of this package are vulnerable to Missing Authorization through the api and browser.api request handlers in the server and UI components. An attacker can run tests, modify project files, or overwrite snapshots by connecting to an exposed API/UI server and invoking the interactive actions that trigger file writes or test execution. When the API server is reachable from the network, the vulnerable code paths in the browser UI and browser command handlers allow write and exec operations without enforcing the intended restrictions, enabling a remote client to modify source files, save attachments, and launch test files on the host machine. This can corrupt the project workspace and execute attacker-controlled code within the Vitest process.