CVE-2025-11953
Published 2025-11-03 · Updated 2026-11-05 · Source reefs@jfrog.com
Summary
CVE-2025-11953 is a critical-severity (CVSS 9.8) vulnerability in React Native Community CLI. CISA added it to the Known Exploited Vulnerabilities catalog on February 5, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 26, 2026. CISA does not currently list it as used in ransomware campaigns.
All 1 known-exploited React Native Community vulnerabilities →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 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: React Native Community — CLI
Name: React Native Community CLI OS Command Injection Vulnerability
Date added: 2026-02-05 · Due: 2026-02-26
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
- https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547
- https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability
- https://x.com/SzymonRybczak/status/1986199665000566848
- https://x.com/thymikee/status/1986770875954475375
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-11953
- https://www.vulncheck.com/blog/metro4shell_eitw