CVE-2026-14802
react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 6, 2026
- Updated
- Jul 6, 2026
- Reserved
- Jul 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
create-react-appreact |
|
References
- VDB-376396 | react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injectionvdb-entrytechnical-description
- VDB-376396 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-14802 | CVE Analysis and Reportthird-party-advisory
- Submit #850857 | Node.js create-react-app 12.0.1 OS Command Injectionthird-party-advisory
- https://github.com/react/create-react-app/issues/17269exploitissue-tracking
- https://github.com/react/create-react-app/product
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