Unrated severityNVD Advisory· Published Jul 6, 2026· Updated Jul 6, 2026
react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection
CVE-2026-14802
Description
A vulnerability was detected in react create-react-app up to 5.0.1 on macOS. This affects the function startBrowserProcess of the file openBrowser.js of the component react-dev-utils. Performing a manipulation results in os command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Patches
Vulnerability mechanics
References
5- github.com/react/create-react-app/issues/17269mitreexploitissue-tracking
- vuldb.com/cve/CVE-2026-14802mitrethird-party-advisory
- vuldb.com/submit/850857mitrethird-party-advisory
- vuldb.com/vuln/376396mitrevdb-entrytechnical-description
- vuldb.com/vuln/376396/ctimitresignaturepermissions-required
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