browserstack browserstack-cypress-cli up to 1.36.5 Configuration Parameter readCypressConfigUtil.js loadJsFile os command injection

Summaryinfo

A vulnerability was found in browserstack browserstack-cypress-cli up to 1.36.5 and classified as critical. The impacted element is the function loadJsFile of the file readCypressConfigUtil.js of the component Configuration Parameter Handler. The manipulation results in os command injection. This vulnerability is cataloged as CVE-2026-48723. The attack must be initiated from a local position. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in browserstack browserstack-cypress-cli up to 1.36.5. It has been classified as critical. Affected is the function loadJsFile of the file readCypressConfigUtil.js of the component Configuration Parameter Handler. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-48723 since 05/22/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 1.36.6 eliminates this vulnerability. Applying the patch 6dbf8f9374c0e25eac818fbcb95f5705ded71710 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• browserstack

Name

• browserstack-cypress-cli

Version

• 1.36.0
• 1.36.1
• 1.36.2
• 1.36.3
• 1.36.4
• 1.36.5

License

• open-source

Website

• Product: https://github.com/browserstack/browserstack-cypress-cli/

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Once again VulDB remains the best source for vulnerability data.

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