Bug 2500586 (CVE-2026-53633)

Summary: CVE-2026-53633 @vitest/browser: vite-plus: Vitest: Remote code execution via exposed Chrome DevTools Protocol API
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: eborisov, lball, ngough, veshanka
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Vitest Browser Mode, a component of the Vitest testing framework. The cdp() API exposed raw Chrome DevTools Protocol (CDP) methods without proper security restrictions. This vulnerability allows a remote attacker, with access to browser API metadata, to leverage CDP functions like Page.setDownloadBehavior and Runtime.evaluate. This can lead to overwriting configuration files and executing arbitrary Node.js code, resulting in remote code execution.
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Description OSIDB Bzimport 2026-07-14 20:05:01 UTC
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.