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Advisory record · GHSA-g9g6-gvq9-j4vp

react-dev-utils openBrowser permits command injection on macOS

CVSS 6.9 MediumEPSS 0.021 · 82nd percentile

Published by the GitHub Advisory Database at 6 Jul 2026, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
react-dev-utilsnpm<=5.0.1No fixed version yet
Identifiers
GHSA-g9g6-gvq9-j4vp · CVE-2026-14802
Weakness (CWE)
CWE-77 · CWE-78
Tags
Published
6 Jul 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The react-dev-utils npm package, up to and including version 5.0.1, is vulnerable to OS command injection in its openBrowser function on macOS. The source describes remote exploitation as possible and says a public exploit exists, though it gives few details about the exact conditions required. No fixed version is listed, and the source says the project has not yet responded to the earlier issue report.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS: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 CNA (VulDB)
  • CISA KEV Not listed.
  • EPSS 0.021, the 82nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:34 UTC First seen by agentprime
  2. 31 Oct 2026, 13:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.