CVE-2026-14802

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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 — 3 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 7.3Exploit: Elevated riskExposed: 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(medium)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
81%
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 / 77× 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.

Showing the most recent 100 of 196 total refreshes for this CVE.

  1. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-11 09:36 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 14:12 UTCEG score recompute
  7. 2026-09-06 14:12 UTCGHSA enrichment
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-05 23:15 UTCEG score recompute
  10. 2026-09-05 23:15 UTCGHSA enrichment
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:11 UTCEPSS rescore
  13. 2026-09-01 13:53 UTCEPSS rescore
  14. 2026-09-01 04:39 UTCEPSS rescore
  15. 2026-08-30 20:03 UTCEG score recompute
  16. 2026-08-30 20:03 UTCGHSA enrichment
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 08:29 UTCEG score recompute
  19. 2026-08-30 08:29 UTCGHSA enrichment
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-28 21:41 UTCEPSS rescore
  22. 2026-08-27 22:01 UTCEG score recompute
  23. 2026-08-27 22:01 UTCGHSA enrichment
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-27 02:22 UTCEG score recompute
Show 75 more
  1. 2026-08-27 02:22 UTCGHSA enrichment
  2. 2026-08-26 14:46 UTCEPSS rescore
  3. 2026-08-26 13:57 UTCEG score recompute
  4. 2026-08-26 13:57 UTCGHSA enrichment
  5. 2026-08-25 13:48 UTCEPSS rescore
  6. 2026-08-25 12:03 UTCGHSA enrichment
  7. 2026-08-24 20:49 UTCEG score recompute
  8. 2026-08-24 20:49 UTCGHSA enrichment
  9. 2026-08-24 04:37 UTCGHSA enrichment
  10. 2026-08-23 17:08 UTCGHSA enrichment
  11. 2026-08-23 05:39 UTCEG score recompute
  12. 2026-08-23 05:39 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-22 18:07 UTCGHSA enrichment
  15. 2026-08-22 04:51 UTCEG score recompute
  16. 2026-08-22 04:51 UTCGHSA enrichment
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 15:52 UTCGHSA enrichment
  19. 2026-08-21 04:23 UTCEG score recompute
  20. 2026-08-21 04:23 UTCGHSA enrichment
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 15:49 UTCGHSA enrichment
  23. 2026-08-20 02:55 UTCEG score recompute
  24. 2026-08-20 02:55 UTCGHSA enrichment
  25. 2026-08-19 17:03 UTCEPSS rescore
  26. 2026-08-19 10:50 UTCGHSA enrichment
  27. 2026-08-18 23:07 UTCEG score recompute
  28. 2026-08-18 23:07 UTCGHSA enrichment
  29. 2026-08-18 13:48 UTCEPSS rescore
  30. 2026-08-18 11:38 UTCGHSA enrichment
  31. 2026-08-17 22:43 UTCEG score recompute
  32. 2026-08-17 22:43 UTCGHSA enrichment
  33. 2026-08-17 13:47 UTCEPSS rescore
  34. 2026-08-17 06:06 UTCGHSA enrichment
  35. 2026-08-16 18:27 UTCEG score recompute
  36. 2026-08-16 18:27 UTCGHSA enrichment
  37. 2026-08-16 14:56 UTCEPSS rescore
  38. 2026-08-16 06:57 UTCEG score recompute
  39. 2026-08-16 06:57 UTCGHSA enrichment
  40. 2026-08-16 02:14 UTCEPSS rescore
  41. 2026-08-15 19:29 UTCGHSA enrichment
  42. 2026-08-15 08:00 UTCEG score recompute
  43. 2026-08-15 08:00 UTCGHSA enrichment
  44. 2026-08-15 01:30 UTCEPSS rescore
  45. 2026-08-14 20:30 UTCGHSA enrichment
  46. 2026-08-14 08:58 UTCEG score recompute
  47. 2026-08-14 08:58 UTCGHSA enrichment
  48. 2026-08-13 22:00 UTCEPSS rescore
  49. 2026-08-13 21:29 UTCGHSA enrichment
  50. 2026-08-13 10:00 UTCGHSA enrichment
  51. 2026-08-12 22:31 UTCEG score recompute
  52. 2026-08-12 22:31 UTCGHSA enrichment
  53. 2026-08-12 13:50 UTCEPSS rescore
  54. 2026-08-12 11:03 UTCGHSA enrichment
  55. 2026-08-11 23:34 UTCEG score recompute
  56. 2026-08-11 23:34 UTCGHSA enrichment
  57. 2026-08-11 13:42 UTCEPSS rescore
  58. 2026-08-11 12:05 UTCGHSA enrichment
  59. 2026-08-11 00:36 UTCEG score recompute
  60. 2026-08-11 00:36 UTCGHSA enrichment
  61. 2026-08-10 23:59 UTCEPSS rescore
  62. 2026-08-10 13:08 UTCGHSA enrichment
  63. 2026-08-10 01:38 UTCGHSA enrichment
  64. 2026-08-09 14:09 UTCEG score recompute
  65. 2026-08-09 14:09 UTCGHSA enrichment
  66. 2026-08-09 13:46 UTCEPSS rescore
  67. 2026-08-09 02:41 UTCEG score recompute
  68. 2026-08-09 02:41 UTCGHSA enrichment
  69. 2026-08-08 16:37 UTCEPSS rescore
  70. 2026-08-08 15:12 UTCGHSA enrichment
  71. 2026-08-08 03:43 UTCEG score recompute
  72. 2026-08-08 03:43 UTCGHSA enrichment
  73. 2026-08-07 16:14 UTCGHSA enrichment
  74. 2026-08-07 04:45 UTCGHSA enrichment
  75. 2026-08-06 17:17 UTCEG score recompute

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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 2% probability of exploitation in the next 30 days, which ranks it in the top 19.3% of all scored CVEs.
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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