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CVE-2026-53633— Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

Quick assessment

Affected
vitest-dev vitest
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vitest vitest是Vitest公司的一款快速的前端测试框架。 Vitest存在安全漏洞，该漏洞源于Browser Mode中的cdp() API未经allowWrite或allowExec检查直接转发Chrome DevTools Protocol方法，可能导致远程客户端使用CDP Page.setDownloadBehavior和Runtime.evaluate覆盖vite.config.ts并执行攻击者控制的Node.js代码。以下版本受到影响：3.0.0至3.2.5之前版本、4.0.0至4

CVSS 9.8 · Critical EPSS 0.90% · P58

Affected Version Matrix 3

VendorProduct Version RangeStatus
vitest-dev vitest >= 3.0.0, < 3.2.5 affected
>= 4.0.0, < 4.1.8 affected
>= 5.0.0-beta.0, < 5.0.0-beta.4 affected
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I. Basic Information for CVE-2026-53633

Vulnerability Information
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Vulnerability Title
Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5
Vulnerability Title
Vitest 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vitest vitest是Vitest公司的一款快速的前端测试框架。 Vitest存在安全漏洞，该漏洞源于Browser Mode中的cdp() API未经allowWrite或allowExec检查直接转发Chrome DevTools Protocol方法，可能导致远程客户端使用CDP Page.setDownloadBehavior和Runtime.evaluate覆盖vite.config.ts并执行攻击者控制的Node.js代码。以下版本受到影响：3.0.0至3.2.5之前版本、4.0.0至4
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vitest-dev vitest >= 3.0.0, < 3.2.5 -

II. Public POCs for CVE-2026-53633

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6975 chars
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Trigger conditions & impact
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III. Intelligence Information for CVE-2026-53633

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Patches & Fixes for CVE-2026-53633 (6)

Vendor Advisories for CVE-2026-53633 (1)

Vendor Pages for CVE-2026-53633 (3)

Same Patch Batch · vitest-dev · 2026-07-14 · 3 CVEs total

CVE-2026-47429 9.8 CRITICAL Vitest: Arbitrary file can be read and executed when Vitest UI server is listening
CVE-2026-47428 9.6 CRITICAL Vitest browser mode serves unsanitized otelCarrier query parameter as inline script

IV. Related Vulnerabilities

Same product: vitest
Same vendor: vitest-dev
Same weakness: CWE-749

V. Comments for CVE-2026-53633

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