CVE-2026-14802CWE-77CWE-78

react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection

Medium · published July 6, 2026

CVSS v4.0
6.9
EPSS
2%
Percentile
81.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
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
EPSS
0.02109 · 81.6th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-07-06T06:30Z
EPSS history
Timeline
  • 06 JUL 06:30Z
    react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection
    cvelistv5