react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-77.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| react | create-react-app | 5.0.0; 5.0.1 | — | No fix listed | CNA |
| — | react-dev-utils (npm) | up to 5.0.1 | — | No fix listed | GHSA-g9g6-gvq9-j4vp |
- create-react-app Vendorreact Affected 5.0.0; 5.0.1 Fixed in — No fix listed CNA
- react-dev-utils (npm) Vendor— Affected up to 5.0.1 Fixed in — No fix listed GHSA-g9g6-gvq9-j4vp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14802
- 2026-10-03 Alias added: GHSA-g9g6-gvq9-j4vp
References
Sources
- CVE-2026-14802 · CVE Program
- CVE-2026-14802 · NVD
- FIRST EPSS
- GHSA-g9g6-gvq9-j4vp · GitHub Advisory Database · CC BY 4.0
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