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CVE-2026-14802

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

CVSS 4.0 6.9 MEDIUMCVSS 3.1 7.3 HIGHCVSS 3.0 7.3 HIGHCVSS 2.0 7.5 Check source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-14802

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-14802

Published

create-react-app

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "react",
                    "product": "create-react-app",
                    "versions": [
                        {
                            "version": "5.0.0",
                            "status": "affected"
                        },
                        {
                            "version": "5.0.1",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:react:create-react-app:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "react-dev-utils"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON