CVE-2026-14802

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-07-06. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.3
EG Score
7.3(high)
EPSS
67.5%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 6, 2026

Advisory Details (2)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

OS Command Injection in openBrowser.js · Issue #17269 · react/create-react-app · GitHub

https://github.com/react/create-react-app/issues/17269
generic

GitHub - react/create-react-app: Set up a modern web app by running one command. · GitHub

https://github.com/react/create-react-app/

Vendor Advisories for CVE-2026-14802(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 06:25 UTCEG score recompute
  2. 2026-07-07 06:24 UTCGHSA enrichment
  3. 2026-07-06 18:53 UTCEG score recompute
  4. 2026-07-06 18:52 UTCGHSA enrichment
  5. 2026-07-06 18:21 UTCNVD updateCVSS v4 → 5.5
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 15:36 UTCMITRE cvelistV5CVSS v4 → 6.9
  8. 2026-07-06 09:42 UTCNVD updateCVSS v4 → 5.5
  9. 2026-07-06 07:23 UTCEG score recompute
  10. 2026-07-06 07:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14802?
CVE-2026-14802 is a high vulnerability published on July 6, 2026. 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…
When was CVE-2026-14802 disclosed?
CVE-2026-14802 was first published in the National Vulnerability Database on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14802 actively exploited?
CVE-2026-14802 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14802?
CVE-2026-14802 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-14802?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14802, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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