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CVE-2026-48723— BrowserStack Cypress CL: Command Injection via cypress_config_file leads to arbitrary code execution through malicious browserstack.json

Quick assessment

Affected
browserstack browserstack-cypress-cli
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

browserstack-cypress-cli是美国browserstack公司的一款前端测试命令行工具。 browserstack browserstack-cypress-cli 1.36.6之前版本存在命令注入漏洞，该漏洞源于对cypress_config_file参数中Shell元字符处理不当，可能导致OS命令注入。

CVSS 7.8 · High EPSS 0.91% · P60

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
browserstack browserstack-cypress-cli < 1.36.6 affected
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I. Basic Information for CVE-2026-48723

Vulnerability Information
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Vulnerability Title
BrowserStack Cypress CL: Command Injection via cypress_config_file leads to arbitrary code execution through malicious browserstack.json
Source: CVE Program / CVE List V5
Vulnerability Description
The browserstack-cypress-cli is BrowserStack's CLI which allows users to run Cypress tests on BrowserStack. Versions prior to 1.36.4 are vulnerable to OS command injection via the cypress_config_file configuration parameter. In readCypressConfigUtil.js, the loadJsFile() function constructs a shell command by interpolating the user-controlled cypress_config_filepath value into a template literal, then executes it via child_process.execSync(). Shell metacharacters in the config path (specifically " and ;) allow breaking out of the quoted argument and injecting arbitrary commands. This issue has been fixed in version 1.36.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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
browserstack browserstack-cypress-cli 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
browserstack-cypress-cli是美国browserstack公司的一款前端测试命令行工具。 browserstack browserstack-cypress-cli 1.36.6之前版本存在命令注入漏洞，该漏洞源于对cypress_config_file参数中Shell元字符处理不当，可能导致OS命令注入。
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
browserstack browserstack-cypress-cli < 1.36.6 -

II. Public POCs for CVE-2026-48723

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10019 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-48723

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Patches & Fixes for CVE-2026-48723 (1)

Vendor Advisories for CVE-2026-48723 (1)

IV. Related Vulnerabilities

Same vendor: browserstack
Same weakness: CWE-78

V. Comments for CVE-2026-48723

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