The npm package hjs-biginteger version 5.0.5 is identified as containing malicious code that compromises the host system. Installation or execution of this package can lead to full system compromise, potentially allowing attackers to access all secrets and keys stored on the machine. Due to the severity of the compromise, simply uninstalling the package does not guarantee removal of all malicious artifacts. The advisory recommends immediate secret/key rotation from a separate secure environment. There is no CVSS score or vendor patch information available, and no known exploits in the wild have been reported.

Full system compromise on any computer with hjs-biginteger version 5.0.5 installed or running. All secrets and keys stored on the affected system are at risk and should be considered compromised. The attacker may have persistent access beyond the presence of the malicious package itself.

Remove the hjs-biginteger package version 5.0.5 immediately. Rotate all secrets and keys stored on the affected computer from a different, secure machine. Because full system compromise is possible, consider a full system rebuild or forensic analysis to ensure all malicious components are eradicated. Patch status is not confirmed; no official fix or update is available. Monitor vendor advisories for updates.