Critical Malicious Code Vulnerability in string-parser-utils Package
Summary
MAL-2025-5958: Malicious code in string-parser-utils (npm). Affects string-parser-utils versions 1.0.0 – 99.9.9. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The string-parser-utils package is an npm utility designed for parsing strings in various formats. It is commonly used in JavaScript applications to simplify string manipulation tasks. However, this package has been identified to contain malicious code that compromises the security of any system it is installed on, making it a significant risk for developers and organizations relying on it.
Vulnerability Detail
The vulnerability originates from embedded malicious code within the string-parser-utils 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 malicious nature of this code is classified under CWE-506, indicating that it appears to be intentionally harmful. The ramifications of this vulnerability are severe, as it could lead to data breaches and loss of control over affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall string-parser-utilsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
Currently, there are no effective workarounds to mitigate the risks posed by this vulnerability other than removing the package entirely. Ensure that your application does not rely on string-parser-utils for string parsing tasks.
Conclusion
The discovery of malicious code within the string-parser-utils package poses a critical threat to any system using it. Immediate action is required to remove the package and secure any compromised systems. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.
See every vulnerability recorded for string-parser-utils →
FAQ
Immediately remove the string-parser-utils package from your project and rotate any secrets or keys stored on the affected system.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.
Failing to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and loss of control over your systems.
Regularly audit your dependencies, use tools like Vulert for real-time monitoring, and stay updated on security advisories related to the packages you use.
CWE-506 refers to the classification of vulnerabilities that involve embedded malicious code, indicating that the code appears to be intentionally harmful.
