Critical Malicious Code Vulnerability in cos-js-sdk-v6 Package
Summary
MAL-2025-192557: Malicious code in cos-js-sdk-v6 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The cos-js-sdk-v6 package is a JavaScript SDK designed for interacting with cloud storage services. It provides developers with tools to manage files, perform uploads and downloads, and handle various storage operations seamlessly. However, this package has been compromised, leading to severe security implications for any application utilizing it.
Vulnerability Detail
The vulnerability stems from the presence of malicious code embedded within the cos-js-sdk-v6 package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information such as secrets and keys. The origin of this malicious code is linked to a known malware source, which has been flagged for its harmful nature. Users are advised to treat any system running this package as compromised and take immediate action to secure their data.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall cos-js-sdk-v6If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
There are no effective workarounds for this vulnerability other than removing the package and securing your system. Ensure that you monitor your environment for any signs of compromise.
Conclusion
The cos-js-sdk-v6 package has been identified as containing malicious code that can compromise systems and expose sensitive data. Immediate action is required to remove the package and secure any affected systems. Users are encouraged to utilize tools like Vulert to monitor for vulnerabilities in their applications.
See every vulnerability recorded for cos-js-sdk-v6 →
FAQ
You should immediately remove the cos-js-sdk-v6 package from your project and rotate any secrets or keys stored on the affected system.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Failing to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and complete system compromise.
While removing the package is essential, you should also ensure that all secrets and keys are rotated and monitor your system for any lingering malicious activity.
It is advisable to avoid using the cos-js-sdk-v6 package until a verified and secure version is released, as the current version is compromised.
