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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.

PUBLISHED Reserved 2026-07-05 | Published 2026-07-06 | Updated 2026-07-06 | Assigner VulDB




MEDIUM: 6.9CVSS: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
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

5.0.0
affected

5.0.1
affected

Timeline

2026-07-05:Advisory disclosed
2026-07-05:VulDB entry created
2026-07-05:VulDB entry last update

Credits

Dremig (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/376396 (VDB-376396 | react create-react-app react-dev-utils openBrowser.js startBrowserProcess os command injection) vdb-entry technical-description

vuldb.com/vuln/376396/cti (VDB-376396 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-14802 (CVE-2026-14802 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/850857 (Submit #850857 | Node.js create-react-app 12.0.1 OS Command Injection) third-party-advisory

github.com/react/create-react-app/issues/17269 exploit issue-tracking

github.com/react/create-react-app/ product

cve.org (CVE-2026-14802)

nvd.nist.gov (CVE-2026-14802)

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