PT-2026-55871 · Unknown · Create-React-App+1

Dremig · Published 2026-07-06 · Updated 2026-07-06 · CVE-2026-14802

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions create-react-app versions prior to 5.0.2

Description On macOS, the startBrowserProcess() function within the openBrowser.js file of the react-dev-utils component allows for OS command injection. This issue enables remote exploitation through the manipulation of the specified function.

Recommendations As a temporary workaround, restrict the use of the startBrowserProcess() function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

CVE-2026-14802

Affected Products

Create-React-App

React-Dev-Utils

References · 8

• 🔥 https://github.com/react/create-react-app/issues/17269 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-14802 · Security Note
• https://vuldb.com/submit/850857 · Note
• https://vuldb.com/vuln/376396 · Note
• https://github.com/react/create-react-app · Note
• https://vuldb.com/vuln/376396/cti · Note
• https://vuldb.com/cve/CVE-2026-14802 · Note
• https://twitter.com/UpwindMDR/status/2074056695739826190 · Twitter Post