Critical Malicious Code Vulnerability in knex.js Package
Summary
MAL-2026-535: Malicious code in knex.js (npm). Affected versions are not published. 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
knex.js is a SQL query builder for Node.js, designed to be flexible and portable across various SQL databases. It provides a powerful API for building complex queries, making it a popular choice among developers for database interactions. However, a recent vulnerability has been identified that compromises the security of systems using this package.
Vulnerability Detail
The vulnerability originates from malicious code embedded within the knex.js package. This code can fully compromise any computer that has the package installed, potentially allowing unauthorized access to sensitive information, including secrets and keys. The malicious nature of the code is classified under CWE-506, indicating that it contains code that appears to be harmful. Users are advised to treat any system running this package as compromised.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall knex.jsIf 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
There are no effective workarounds for this vulnerability other than removing the package and securing the environment. Ensure that all sensitive data is rotated and that the system is monitored for any unusual activity.
Conclusion
The discovery of malicious code within the knex.js package poses a significant threat to systems utilizing this package. Immediate action is required to remove the package and secure any compromised systems. Users should remain vigilant and consider using tools like Vulert for ongoing vulnerability monitoring.
See every vulnerability recorded for knex.js →
FAQ
knex.js is a SQL query builder for Node.js that allows developers to construct SQL queries in a flexible and portable manner.
If knex.js is installed, your system may be fully compromised, allowing unauthorized access to sensitive information.
Immediately remove the knex.js package and rotate any secrets or keys stored on the affected system.
Currently, there is no patched version available. Users should remove the package and secure their systems.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
