Critical Malicious Code Vulnerability in ts-lint-builder Package
Summary
MAL-2026-1346: Malicious code in ts-lint-builder (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The ts-lint-builder package is a tool used in the JavaScript ecosystem, specifically for linting TypeScript code. It helps developers maintain code quality by identifying potential errors and enforcing coding standards. However, this package has been compromised, leading to severe security risks for any system that has it installed.
Vulnerability Detail
The vulnerability stems from the presence of malicious code embedded within the ts-lint-builder package. This code can fully compromise any computer running the package, allowing unauthorized access to sensitive information such as secrets and keys. The origin of this malicious code is linked to a known malware source, and it poses a significant threat to system integrity and data security.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ts-lint-builderIf 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 entirely. Ensure that you have rotated any sensitive information that may have been exposed.
Conclusion
The ts-lint-builder package has been identified as containing malicious code that poses a significant security risk. Immediate action is required to remove the package and secure any sensitive information that may have been compromised. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
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FAQ
ts-lint-builder is a tool used for linting TypeScript code, helping developers maintain code quality and adhere to coding standards.
If you have the ts-lint-builder package installed, your system is potentially compromised. It is advisable to remove the package and check for any unauthorized access to sensitive information.
Immediately rotate all secrets and keys stored on the compromised system from a different, secure computer to prevent unauthorized access.
Yes, you can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities in your software.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
