CVE-2026-25244 Security Alert: CRITICAL Vulnerability

Urgent: CVE-2026-25244 requires immediate attention.

· 4 min read

```html

Executive Summary

A critical command injection vulnerability (CVE-2026-25244) has been identified in the npm package @wdio/browserstack-service. This flaw allows attackers to execute arbitrary commands on systems running affected versions by exploiting user-controlled git branch names. Developers using this package are urged to take immediate action to protect their environments from potential remote code execution (RCE) attacks.

Immediate Action

  • Immediately review your project dependencies and identify the use of @wdio/browserstack-service.
  • Upgrade to the latest patched version of @wdio/browserstack-service as soon as it is available.
  • Isolate any services utilizing this package to minimize exposure until a patch is applied.
  • Review and sanitize any git branch names used in your CI/CD pipelines to prevent exploitation.
  • Monitor for unusual activity on your CI/CD servers and developer machines.
  • Check the official repository for updates and advisories: WebdriverIO GitHub.

Affected Versions

  • @wdio/browserstack-service@<=X.Y.Z vulnerable; upgrade to X.Y.Z+ (exact version TBD).

Resolution Guide

To mitigate the risk, update the vulnerable package using the following commands:

npm install @wdio/browserstack-service@latest

For additional safety, consider implementing the following configuration hardening:


// Example of disabling test orchestration options
export const config = {
    services: [
        ['browserstack', {
            user: process.env.BROWSERSTACK_USERNAME,
            key: process.env.BROWSERSTACK_ACCESS_KEY,
            testOrchestrationOptions: {
                runSmartSelection: {
                    enabled: false // Disable until patch is applied
                }
            }
        }]
    ],
    // ... rest of config
}

If applicable, review the source code at this link for potential code fixes.

Detection & Verification

To check if your project is vulnerable, run:

npm list @wdio/browserstack-service

Verify the fix by ensuring the installed version is patched:

npm list @wdio/browserstack-service | grep 'version'

Additionally, monitor your CI/CD logs for any unauthorized command execution attempts.

Risk and Impact

If exploited, this vulnerability could lead to remote code execution on your CI/CD servers or developer machines, resulting in unauthorized access to sensitive information, data exfiltration, and potential system compromise. The blast radius includes any environment where @wdio/browserstack-service is utilized, making immediate action essential.

```

Keep reading