CVE WatchJul 16, 2026

CVE-2026-53633

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

CVSS

9.8

Critical

EPSS

0.6%

p44

KEV

—

Exploit Today

0-100

Published: Jul 14, 2026 · Last modified: Jul 16, 2026 · CWE-749 · CWE-862

EPSS · 30d

0.6%EPSS · 30 days0.6%

2026-07-152026-07-16

Technical 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.

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