CVE-2025-11953
React Native Community CLI OS Command Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 February 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 93.98% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 5 February 2026 · due 26 February 2026
- Weakness
- CWE-78
- Affected
- react-native-community/react native community cli
- Source
- reefs@jfrog.com
EPSS 94.0% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547 ; https://github.com/react-native-community/cli/pull/2735 ; https://nvd.nist.gov/vuln/detail/CVE-2025-11953
References
- https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547Patch
- https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerabilityExploit, Mitigation, Third 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-2025-11953US Government Resource
- https://www.vulncheck.com/blog/metro4shell_eitwExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.