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CVE-2026-14802— react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection

Quick assessment

Affected
react create-react-app
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.

React Create React App是React组织开源的一款 React 项目脚手架工具，允许开发者通过一条命令快速搭建零配置的现代化 React 单页应用开发环境。 React Create React App 5.0.1及之前版本存在安全漏洞，该漏洞源于react-dev-utils组件中openBrowser.js文件的startBrowserProcess函数存在os命令注入漏洞，可能导致攻击者远程利用。

CVSS 7.3 · High EPSS 2.11% · P81

Affected Version Matrix 2

VendorProduct Version RangeStatus
react create-react-app 5.0.0 affected
5.0.1 affected
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I. Basic Information for CVE-2026-14802

Vulnerability Information
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Vulnerability Title
react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in react create-react-app up to 5.0.1 on macOS. This affects the function startBrowserProcess of the file openBrowser.js of the component react-dev-utils. Performing a manipulation results in os command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
React Create React App 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
React Create React App是React组织开源的一款 React 项目脚手架工具，允许开发者通过一条命令快速搭建零配置的现代化 React 单页应用开发环境。 React Create React App 5.0.1及之前版本存在安全漏洞，该漏洞源于react-dev-utils组件中openBrowser.js文件的startBrowserProcess函数存在os命令注入漏洞，可能导致攻击者远程利用。
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
react create-react-app 5.0.0 cpe:2.3:a:react:create-react-app:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-14802

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7261 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-14802

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Proof of Concept for CVE-2026-14802 (1)

Vendor Pages for CVE-2026-14802 (1)

IV. Related Vulnerabilities

Same weakness: CWE-78

V. Comments for CVE-2026-14802

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