Command Injection Error in React Native An OS command injection vulnerability in the React Native Community CLI has been identified as actively exploited in the wild by the U.S This article explores vulnerability react native. . Cybersecurity and Infrastructure Security Agency (CISA), which has added CVE-2025-11953 to its list of known exploited vulnerabilities (KEVs).

The vulnerability was introduced on February 5, 2026, and developers using exposed Metro Development Servers are at serious risk. The federal patching deadline is February 26, 2026. Businesses like Meta and Shopify use React Native, a well-known framework for cross-platform mobile apps, which depends on Metro bundler for quick bundling and the Community CLI for project management. Attackers can remotely run arbitrary executables and send unauthenticated POST requests to take advantage of a vulnerable endpoint.

With attacker-specified arguments, this escalates to full shell control on Windows, allowing for the deployment of ransomware, data exfiltration, or persistent backdoors. This open-source vulnerability could increase supply chain risks by spreading to proprietary apps and third-party libraries. Threat actors prefer such dev-tool vulnerabilities for initial access in APT campaigns, though there is currently no ransomware attribution.

Businesses with development environments or CI/CD pipelines are more vulnerable. When chained with inadequate network segmentation, exposed metro servers—which are frequently used in local development workflows—permit lateral movement. SOC teams should look for IOCs like unexpected process spawns and unusual POSTs to CLI endpoints (like /cli/debugger). Quick Fix: Use GitHub fixes to update the CLI; confirm with npx @react-native-community/cli@latest doctor.

Adhere to BOD 22-01: Use least-privilege access to harden cloud services (AWS, Azure).

Defenses include using EDR for command-line monitoring, stopping unpatched use, and firewalling Metro ports (8081 by default). Sigma rules for cmd.exe /c with CLI arguments or Metro traffic spikes are examples of hunt queries. CISA calls on FCEB agencies to move quickly.

Developers: Don't make your development servers public. This serves as a reminder that as 2026's attack surface grows, dev tools are prime targets. X, LinkedIn, and LinkedIn for daily ZeroOwl. To have your stories featured, get in touch with us.