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Advisory record · GHSA-6vr3-7wcx-v5g5

browserstack-runner vulnerable to Remote Code Execution via vm sandbox escape in _log HTTP handler

CVSS 8.7 HighEPSS 0.0080 · 57th percentile

Published by the GitHub Advisory Database at 3 Jun 2026, 21:39 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
browserstack-runnernpm<=0.9.5No fixed version yet
Identifiers
GHSA-6vr3-7wcx-v5g5 · CVE-2026-49143
Weakness (CWE)
CWE-94
Tags
Published
3 Jun 2026
Updated
3 Jun 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
8.7 High 4.0 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0080, the 57th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 2 Jun 2026, 20:31 UTC Confirmed by the CVE List

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.