CVE-2025-11953
November 03, 2025
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 Packages
https://github.com/react-native-community/cli.git (GITHUB):
Affected version(s) >=v19.0.0-alpha.0 <v19.1.2Fix Suggestion:
Update to version v19.1.2https://github.com/react-native-community/cli.git (GITHUB):
Affected version(s) >=v20.0.0-alpha.0 <v20.0.0Fix Suggestion:
Update to version v20.0.0https://github.com/react-native-community/cli.git (GITHUB):
Affected version(s) =v18.0.0 <v18.0.1Fix Suggestion:
Update to version v18.0.1@react-native-community/cli (NPM):
Affected version(s) >=20.0.0-alpha.0 <20.0.0Fix Suggestion:
Update to version 20.0.0@react-native-community/cli (NPM):
Affected version(s) >=19.0.0-alpha.0 <19.1.2Fix Suggestion:
Update to version 19.1.2@react-native-community/cli-server-api (NPM):
Affected version(s) >=20.0.0-alpha.0 <20.0.0Fix Suggestion:
Update to version 20.0.0@react-native-community/cli (NPM):
Affected version(s) =18.0.0 <18.0.1Fix Suggestion:
Update to version 18.0.1@react-native-community/cli-server-api (NPM):
Affected version(s) =18.0.0 <18.0.1Fix Suggestion:
Update to version 18.0.1@react-native-community/cli-server-api (NPM):
Affected version(s) >=19.0.0-alpha.0 <19.1.2Fix Suggestion:
Update to version 19.1.2Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (16)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
ATTACKED
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
EPSS
Base Score:
7.71
