Critical Malicious Code Vulnerability in semver-bump-io Package
Summary
MAL-2026-16453: Malicious code in semver-bump-io (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The semver-bump-io package is an npm library designed to assist developers in managing semantic versioning for their projects. It automates the process of incrementing version numbers based on the changes made to the codebase. 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 semver-bump-io 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 traced back to a known malware source, making it imperative for users to take immediate action to secure their systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall semver-bump-ioIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, it is advisable to avoid using the semver-bump-io package altogether. Instead, consider using alternative packages that provide similar functionality without the associated security risks.
Conclusion
The semver-bump-io package has been identified as containing malicious code that poses a significant security threat. Users are strongly advised to uninstall the package and take necessary precautions to secure their systems. Regular monitoring for vulnerabilities is essential to maintain the integrity of your software.
See every vulnerability recorded for semver-bump-io →
FAQ
semver-bump-io is an npm package that helps developers manage semantic versioning by automating version number increments.
The malicious code can compromise your system, allowing unauthorized access to sensitive information and potentially leading to further security breaches.
Immediately uninstall the semver-bump-io package and rotate any sensitive information stored on the affected system.
No, there is currently no patched version available for the semver-bump-io package.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can also check if your application is affected by this vulnerability using the Vulert playground without any signup.
