Skip to content
OpenAdvisories
Critical · 9.8 CVE-2026-53633 EUVD-2026-44403GHSA-g8mr-85jm-7xhm

Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

Published Jul 14, 2026 · Updated Jul 29, 2026 · Assigned by GitHub_M

Description

Vitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp() API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote client with exposed browser API metadata to use CDP Page.setDownloadBehavior and Runtime.evaluate to overwrite vite.config.ts and execute attacker-controlled Node.js code. This issue is fixed in versions 3.2.5, 4.1.8, and 5.0.0-beta.

Affected products

VendorProductAffectedFixed
vitest-dev vitest >= 3.0.0, < 3.2.5, >= 4.0.0, < 4.1.8, >= 5.0.0-beta.0, < 5.0.0-beta.4 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @vitest/browser >= 5.0.0-beta.0, < 5.0.0-beta.4 5.0.0-beta.4 GHSA-g8mr-85jm-7xhm
npm @vitest/browser >= 4.0.0, < 4.1.8 4.1.8 GHSA-g8mr-85jm-7xhm
npm @vitest/browser >= 3.0.0, < 3.2.5 3.2.5 GHSA-g8mr-85jm-7xhm
npm vite-plus < 0.1.24 0.1.24 GHSA-g8mr-85jm-7xhm

References