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Critical · 9.8 Known exploited Scanner template Public exploit CVE-2025-11953 EUVD-2025-37505GHSA-399j-vxmf-hjvr

Command injection in React Native Community CLI allows remote attackers to perform remote code execution by sending HTTP requests

Published Nov 3, 2025 · Updated Feb 26, 2026 · Assigned by JFROG

Package: @react-native-community/cli Package: @react-native-community/cli-server-api Ecosystem: npm

Description

The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection. This allows unauthenticated network attackers to send a POST request to the server and run arbitrary executables. On Windows, the attackers can also execute arbitrary shell commands with fully controlled arguments.

Affected products

VendorProductAffectedFixed
— @react-native-community/cli-server-api 4.8.0 – < 20.0.0 20.0.0

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 3 repositories

  • SaidBenaissa/cve-2025-11953-vulnerability-demo ★ 4 · Nov 4, 2025

    CVE-2025-11953 demonstration: Critical RCE vulnerability in React Native CLI (CVSS 9.8). Educational security research with proof-of-concept exploits and mitigation strategies.

  • boroeurnprach/CVE-2025-11953-PoC ★ 0 · Jan 15, 2026

    CVE-2025-11953 - The React Native Metro server's default external binding exposes a vulnerable endpoint, allowing unauthenticated attackers to execute arbitrary OS commands via a malicious POST reque…

  • Mr-In4inci3le/CVE-2025-11953-POC- ★ 0 · Jan 12, 2026

    CVE-2025-11953 is a critical Remote Code Execution (RCE) vulnerability in the React Native CLI's Metro development server

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Affected packages

EcosystemPackageAffectedFixedRecord
npm @react-native-community/cli >= 20.0.0-alpha.0, < 20.0.0 20.0.0 GHSA-399j-vxmf-hjvr
npm @react-native-community/cli >= 19.0.0-alpha.0, < 19.1.2 19.1.2 GHSA-399j-vxmf-hjvr
npm @react-native-community/cli >= 18.0.0, < 18.0.1 18.0.1 GHSA-399j-vxmf-hjvr
npm @react-native-community/cli-server-api >= 20.0.0-alpha.0, < 20.0.0 20.0.0 GHSA-399j-vxmf-hjvr
npm @react-native-community/cli-server-api >= 19.0.0-alpha.0, < 19.1.2 19.1.2 GHSA-399j-vxmf-hjvr
npm @react-native-community/cli-server-api >= 18.0.0, < 18.0.1 18.0.1 GHSA-399j-vxmf-hjvr

References