Malware in base58-cli
The npm package base58-cli was found to contain malware, potentially giving attackers full control of affected systems. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- base58-clinpm package containing malware
The npm package base58-cli was identified as containing malware. According to the GitHub Advisory (GHSA-fg2f-v569-6wqv), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise, given that the attacker may have gained full control of the system.\n\nThis is a critical supply chain incident affecting the npm ecosystem, with the potential to compromise any developer or system that installed or executed this package.
Indicators of compromise
- Packages
- base58-cli
Remediation
- Immediately remove the base58-cli package from all affected systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Perform a full security audit and malware scan of any system that had this package installed
- Review system logs and network activity for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
- Monitor for any suspicious activity on accounts or systems that may have been exposed
Sources
- GitHub Advisory GHSA-fg2f-v569-6wqv · GitHub Advisory Database
Cite this entry
"Malware in base58-cli." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 7, 2026; last updated July 7, 2026. https://supplychainattack.org/incident/malware-in-base58-cli-1gxstm
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- activecritical
Malware in ts-await
Malware discovered in the npm package ts-await. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - activecritical
Malware in nodemon-node
The npm package nodemon-node contains malware that grants full system compromise to attackers. Any computer with this package installed or running should be considered fully compromised and all secrets and keys rotated immediately from a different machine.
npmCompromised package - activecritical
Malware in @sqlite-list/createsql
Malware discovered in the npm package @sqlite-list/createsql. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - containedcritical
Malware in brunomenozzi-test-pkg
Malware was discovered in the npm package brunomenozzi-test-pkg. Systems with this package installed or running should be considered fully compromised and require immediate remediation.
npmCompromised package