Critical Malicious Code Vulnerability in pulse-feature-flag Package
Summary
MAL-2026-2092: Malicious code in pulse-feature-flag (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
The pulse-feature-flag package is an npm library designed to manage feature flags in applications, allowing developers to enable or disable features dynamically. However, this package has been compromised, embedding malicious code that poses significant security risks to any system where it is installed.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the pulse-feature-flag 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 implications of this vulnerability are severe, as it can lead to data breaches and loss of control over the affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall pulse-feature-flagIf 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. The only recommended action is to uninstall the package and secure the system.
Conclusion
The pulse-feature-flag package has been compromised with malicious code, posing serious security risks. Immediate removal of the package and rotation of sensitive information are essential steps to mitigate the impact of this vulnerability. Regular monitoring of dependencies is recommended to prevent future issues.
See every vulnerability recorded for pulse-feature-flag →
FAQ
You should immediately uninstall the package and rotate any sensitive information stored on the affected system.
You can use Vulert, which monitors and alerts for open-source vulnerabilities. Visit the Vulert playground at Vulert Scanner to check your application without any signup.
Failing to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and loss of control over your systems.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert and keep your packages updated to minimize risks.
Immediately rotate any secrets and keys that were stored on the affected computer to ensure security.
