What’s Vulnerable › Vulnerabilities

CVE-2026-14802: react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-06 · updated 2026-07-06
• Weakness: CWE-77

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.

Affected products

• react create-react-app: 5.0.0, 5.0.1

References

• https://github.com/react/create-react-app/
• https://github.com/react/create-react-app/issues/17269
• https://vuldb.com/cve/CVE-2026-14802
• https://vuldb.com/submit/850857
• https://vuldb.com/vuln/376396
• https://vuldb.com/vuln/376396/cti
• https://vuldb.com/submit/850857

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