CVE-2026-39862

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Shopify/tophat/pull/139	Issue Tracking
https://github.com/Shopify/tophat/security/advisories/GHSA-8x8g-6rv5-mgg2	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:shopify:tophat:*:*:*:*:*:*:*:*

History

20 Apr 2026, 14:39

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
First Time		Shopify Shopify tophat
CPE		cpe:2.3:a:shopify:tophat::::::::
References	~~() https://github.com/Shopify/tophat/pull/139 -~~	() https://github.com/Shopify/tophat/pull/139 - Issue Tracking
References	~~() https://github.com/Shopify/tophat/security/advisories/GHSA-8x8g-6rv5-mgg2 -~~	() https://github.com/Shopify/tophat/security/advisories/GHSA-8x8g-6rv5-mgg2 - Vendor Advisory

08 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 20:16

Updated : 2026-04-20 14:39

NVD link : CVE-2026-39862

Mitre link : CVE-2026-39862

CVE.ORG link : CVE-2026-39862

JSON object : View

Products Affected

shopify

tophat

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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