Malware in base65-13x
The npm package base65-13x was found to contain malware, resulting in full system compromise of any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- base65-13x
The npm package base65-13x was identified as containing malware. According to the GitHub Advisory (GHSA-fp83-xcpx-v3qm), 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 computer. 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 package installation, as the outside entity may have gained full control of the system.\n\nAffected package: base65-13x (npm).
Indicators of compromise
- Packages
- base65-13x
Remediation
- Immediately remove the base65-13x package from all systems
- Rotate all secrets, keys, and credentials from a different, unaffected computer
- Assume full system compromise and conduct forensic analysis
- Review system logs for unauthorized access or activity
- Consider full system rebuild if critical infrastructure is affected
Sources
- GitHub Advisory GHSA-fp83-xcpx-v3qm · GitHub Advisory Database
Cite this entry
"Malware in base65-13x." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 11, 2026; last updated August 11, 2026. https://supplychainattack.org/incident/malware-in-base65-13x-1qd8ck
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