CVE-2026-39862HIGH 8.8EPSS p41.9%

CVE-2026-39862CVE-2026-39862

Description

Tophat is a mobile applications testing harness. Prior to 2.5.1, Tophat is affected by remote code execution via crafted tophat:// or http://localhost:29070 URLs. The arguments query parameter flows unsanitized from URL parsing through to /bin/bash -c execution, allowing an attacker to execute arbitrary commands on a developer's macOS workstation. Any developer with Tophat installed is vulnerable. For previously trusted build hosts, no confirmation dialog appears. Attacker commands run with the user's permissions. This vulnerability is fixed in 2.5.1.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.56% probability of exploitation · percentile 41.9% · 2026-06-19T12:03:05Z
Published2026-04-08
Last modified2026-04-20

Underlying weaknesses· 1

CWE-78

References

  1. https://github.com/Shopify/tophat/pull/139
  2. https://github.com/Shopify/tophat/security/advisories/GHSA-8x8g-6rv5-mgg2

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.