Critical Malicious Code Vulnerability in formik.js Package
Summary
MAL-2025-20791: Malicious code in formik.js (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
Formik.js is a popular library in the npm ecosystem used for building forms in React applications. It simplifies form management by handling form state, validation, and submission, making it a go-to choice for developers. However, recent findings have revealed that the package contains malicious code, posing a significant security risk to applications that utilize it.
Vulnerability Detail
The vulnerability in formik.js arises from the inclusion of malicious code that can compromise the security of applications using this package. This code can lead to unauthorized access, data breaches, or other malicious activities. The issue was introduced in version 0 and affects all subsequent versions, making it imperative for users to take immediate action to mitigate the risks associated with this vulnerability.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall formik.jsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, consider removing the formik.js package from your project until a secure version is released. You can do this by running: 'npm uninstall formik.js'. Alternatively, you may explore other form management libraries that do not have this vulnerability.
Conclusion
The discovery of malicious code in the formik.js package poses a serious threat to applications that utilize it. Users are urged to take immediate action by updating or removing the package until a secure version is available. Regular monitoring of dependencies and utilizing tools like Vulert can help maintain application security.
See every vulnerability recorded for formik.js →
FAQ
Formik.js is a library for managing forms in React applications, providing features for handling form state, validation, and submission.
The malicious code can lead to unauthorized access and data breaches, compromising the security of applications that use the package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
As of now, a patched version has not been released. Users should monitor the package repository for updates.
If immediate removal is not possible, consider implementing additional security measures in your application to mitigate potential risks.
