CRITICAL9.8
GHSA-399j-vxmf-hjvr
@react-native-community/cli has arbitrary OS command injection
Quick fix
GHSA-399j-vxmf-hjvr — @react-native-community/cli: upgrade to the fixed version with the command below.
npm install @react-native-community/cli@20.0.0Details
The Metro Development Server, which is opened by the React Native 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.
Are you affected?
Enter the version of the package you're using.
Affected packages
npm/@react-native-community/cli
Introduced in:
20.0.0-alpha.0Fixed in: 20.0.0Fix
npm install @react-native-community/cli@20.0.0npm/@react-native-community/cli
Introduced in:
19.0.0-alpha.0Fixed in: 19.1.2Fix
npm install @react-native-community/cli@19.1.2npm/@react-native-community/cli
Introduced in:
18.0.0Fixed in: 18.0.1Fix
npm install @react-native-community/cli@18.0.1npm/@react-native-community/cli-server-api
Introduced in:
20.0.0-alpha.0Fixed in: 20.0.0Fix
npm install @react-native-community/cli-server-api@20.0.0npm/@react-native-community/cli-server-api
Introduced in:
19.0.0-alpha.0Fixed in: 19.1.2Fix
npm install @react-native-community/cli-server-api@19.1.2npm/@react-native-community/cli-server-api
Introduced in:
18.0.0Fixed in: 18.0.1Fix
npm install @react-native-community/cli-server-api@18.0.1References
- https://nvd.nist.gov/vuln/detail/CVE-2025-11953[ADVISORY]
- https://github.com/react-native-community/cli/issues/2733#issuecomment-3502424164[WEB]
- https://github.com/react-native-community/cli/pull/1615[WEB]
- https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547[WEB]
- https://github.com/react-native-community/cli/commit/5a792169d9883e0b0fb1ddf1ea46778f21510d18[WEB]
- https://github.com/react-native-community/cli/commit/9e1fa8cc633e5dcf32244ffa60a871880be56722[WEB]
- https://github.com/react-native-community/cli/commit/a8293dc29425f56249753507bc24d87b698d46e1[WEB]
- https://github.com/react-native-community/cli[PACKAGE]
- https://github.com/react-native-community/cli/releases/tag/v20.0.0[WEB]
- https://github.com/react-native-community/cli?tab=readme-ov-file#compatibility[WEB]
- https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability[WEB]
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-11953[WEB]
- https://www.vulncheck.com/blog/metro4shell_eitw[WEB]
- https://x.com/SzymonRybczak/status/1986199665000566848[WEB]
- https://x.com/szymonrybczak/status/1986199665000566848?s=46[WEB]
- https://x.com/thymikee/status/1986770875954475375[WEB]