Actively exploited · Published Nov 3, 2025 · Assigned by JFROG
CVE-2025-11953Command injection in React Native Community CLI allows remote attackers to perform remote code execution by sending HTTP requests
Critical 9.8 Exploited
In plain English
A critical-severity OS command injection in @react-native-community/cli-server-api. Attackers are actively exploiting it in the wild (listed by CISA on February 5, 2026). The chance it is exploited in the next 30 days is estimated at 94.0% (higher than 99.8% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Feb 26, 2026.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @react-native-community/cli | 20.0.0 | GHSA-399j-vxmf-hjvr |
| npm | @react-native-community/cli | 19.1.2 | GHSA-399j-vxmf-hjvr |
| npm | @react-native-community/cli | 18.0.1 | GHSA-399j-vxmf-hjvr |
| npm | @react-native-community/cli-server-api | 20.0.0 | GHSA-399j-vxmf-hjvr |
| npm | @react-native-community/cli-server-api | 19.1.2 | GHSA-399j-vxmf-hjvr |
| npm | @react-native-community/cli-server-api | 18.0.1 | GHSA-399j-vxmf-hjvr |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| @react-native-community/cli-server-api | 4.8.0 – before 20.0.0 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability technical-description
- https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547 patch
- https://www.vulncheck.com/blog/metro4shell_eitw third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-11953 government-resource
- https://x.com/SzymonRybczak/status/1986199665000566848
- https://x.com/thymikee/status/1986770875954475375