High severity8.8NVD Advisory· Published Apr 8, 2026· Updated Apr 20, 2026
CVE-2026-39862
CVE-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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/Shopify/tophat/security/advisories/GHSA-8x8g-6rv5-mgg2nvdVendor Advisory
- github.com/Shopify/tophat/pull/139nvdIssue Tracking
News mentions
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