Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| React-Native-Community | React Native Community Cli | >= 19.0.0, < 19.1.2 |
Related Weaknesses (CWE)
References
- https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f688Patch
- https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerExploitMitigationThird Party Advisory
- https://x.com/SzymonRybczak/status/1986199665000566848Third Party Advisory
- https://x.com/thymikee/status/1986770875954475375Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-US Government Resource
- https://www.vulncheck.com/blog/metro4shell_eitwExploitThird Party Advisory
FAQ
What is CVE-2025-11953?
CVE-2025-11953 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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. Thi...
How severe is CVE-2025-11953?
CVE-2025-11953 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-11953?
Check the references section above for vendor advisories and patch information. Affected products include: React-Native-Community React Native Community Cli.