The 'acme_smileage' RubyGems package version 4.0.1 has been flagged as containing malicious code by the OpenSSF malicious packages repository. This indicates that the package is a malicious software supply chain artifact rather than a traditional vulnerability. There is no detailed technical description of the malicious behavior or exploitation methods in the provided data. No patch or remediation information is available from the source.

Use of the 'acme_smileage' version 4.0.1 package may lead to execution of malicious code within the environment where it is installed. This can compromise system integrity, confidentiality, or availability depending on the payload, but specific impacts are not detailed in the source data.

Avoid using the 'acme_smileage' RubyGems package version 4.0.1. Since no patch or fixed version is indicated, users should remove this version from their dependencies and replace it with a trusted alternative. Monitor official RubyGems advisories or the OpenSSF malicious packages repository for updates or remediation guidance.