Embedded Malicious Code Affecting @pkgr/core package, versions >0.2.7 <0.2.9
Threat Intelligence
Snyk has reported that there have been attempts or successful attacks targeting this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-PKGRCORE-10873302
- published22 Jul 2025
- disclosed19 Jul 2025
- creditDasa Paddock
Introduced: 19 Jul 2025
New Malicious CVE-2025-54313 (opens in a new tab)How to fix?
Upgrade @pkgr/core to version 0.2.9 or higher.
Overview
@pkgr/core is a malicious package. through an npm postinstall script 'install.js'. A malicious actor compromised the credentials of one of the maintainers via a phishing attack; This allowed the attacker to publish tampered versions of the package to npm.
Script Behavior
The script attempts to execute a malicious payload in 'node-gyp.dll', which is included in the package, using rundll32 on Windows systems.
Notes:
- This issue is particularly relevant to Windows systems.
- The payload is a (known trojan)[https://www.virustotal.com/gui/file/c68e42f416f482d43653f36cd14384270b54b68d6496a8e34ce887687de5b441] with signatures available on VirusTotal.