Skip to content
CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-53633

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

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

vitest-dev vitest

  • >= 3.0.0, < 3.2.5affected
  • >= 4.0.0, < 4.1.8affected
  • >= 5.0.0-beta.0, < 5.0.0-beta.4affected

References