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CVE-2026-39862— Tophat has a Command Injection Vulnerability When Accessing a Maliciously Crafted Tophat Link

Quick assessment

Affected
Shopify tophat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tophat是Shopify开源的一个测试工具。 Tophat 2.5.1之前版本存在操作系统命令注入漏洞，该漏洞源于参数未清理，可能导致远程代码执行。

AI Predicted 8.8 Difficulty: Easy EPSS 0.56% · P46

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-39862

Vulnerability Information
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Vulnerability Title
Tophat has a Command Injection Vulnerability When Accessing a Maliciously Crafted Tophat Link
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Tophat 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tophat是Shopify开源的一个测试工具。 Tophat 2.5.1之前版本存在操作系统命令注入漏洞，该漏洞源于参数未清理，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Shopify tophat < 2.5.1 -

II. Public POCs for CVE-2026-39862

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III. Intelligence Information for CVE-2026-39862

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IV. Related Vulnerabilities

Same product: tophat
Same vendor: Shopify
Same weakness: CWE-78