The 'kartyk-github-single-ver-pkg' npm package is identified as containing malicious code that results in a full compromise of any computer where it is installed or executed. This compromise potentially grants attackers complete control over the system and access to sensitive information such as secrets and keys. Due to the severity of the compromise, simply uninstalling the package may not be sufficient to fully remediate the system, as additional malicious software may have been installed. Immediate secret/key rotation from a secure environment is recommended to mitigate further risk.

Full system compromise on any computer with the package installed or running, including potential unauthorized access to stored secrets and keys. This can lead to data breaches, unauthorized system control, and further malicious activity. The compromise is severe enough that removing the package alone does not guarantee complete remediation.

Remove the 'kartyk-github-single-ver-pkg' package immediately from all affected systems. Rotate all secrets and keys stored on compromised computers from a different, secure system. Due to the possibility of persistent malicious software beyond the package itself, consider full system remediation or rebuild to ensure complete removal of the threat.