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.
CVE-2025-11953
CVSS base score
9.8 (v3.1)
Severity
CRITICAL
Attack vector
Network
Weakness
CWE-78
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
react-native-community react native community cli
References
- github.com Patch
- jfrog.com Exploit, Mitigation, Third Party Advisory
- x.com Third Party Advisory
- x.com Third Party Advisory
- www.cisa.gov US Government Resource
- www.vulncheck.com Exploit, Third Party Advisory