Critical Malicious Code Vulnerability in polygon-gamma-api Package
Summary
MAL-2026-1333: Malicious code in polygon-gamma-api (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 polygon-gamma-api package is a Node.js library designed for interacting with the Polygon API, which provides access to various financial data. This package is utilized by developers to integrate Polygon's services into their applications. However, it has been identified to contain malicious code that compromises the security of any system where it is installed.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within the polygon-gamma-api 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 unauthorized control over the affected systems. The malicious nature of the code has been confirmed by security researchers, and it is classified under CWE-506, which pertains to embedded malicious code.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polygon-gamma-apiIf 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 and securing your environment.
Conclusion
The polygon-gamma-api package has been identified as containing malicious code that poses a significant security risk. Immediate action is required to remove the package and secure any sensitive information. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
See every vulnerability recorded for polygon-gamma-api →
FAQ
You should immediately remove the package and rotate any sensitive information stored on the affected system.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Check your application using the Vulert playground at Vulert Scanner.
Failing to address this vulnerability can lead to unauthorized access to your system, data breaches, and potential control by malicious actors.
While removing the package is essential, you should also rotate all secrets and keys to ensure that any potential access points are secured.
If a patched version is released, updating the package will help, but it is still crucial to remove the existing compromised version and secure your environment.
