Malware in mcp-server-boilerplate
Malware was discovered in the npm package mcp-server-boilerplate, resulting in full system compromise for any computer with the package installed or running. The advisory recommends immediate removal and rotation of all secrets and keys from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- mcp-server-boilerplate
A critical malware incident was identified in the npm package mcp-server-boilerplate. According to the GitHub Security Advisory (GHSA-694g-9jgf-5566), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory indicates that the malicious package grants outside entities full control of affected systems. All secrets and keys stored on compromised computers should be rotated immediately from a different, unaffected computer.\n\nWhile removal of the package is recommended, the advisory notes that full system compromise may have occurred, meaning removal of the package alone may not eliminate all malicious software that was installed as a result of the initial compromise.
Indicators of compromise
- Packages
- mcp-server-boilerplate
Remediation
- Immediately remove the mcp-server-boilerplate package from all systems
- Rotate all secrets, keys, and credentials from a different, unaffected computer
- Assume full system compromise and conduct forensic analysis on affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider rebuilding affected systems from clean media if full compromise is suspected
Sources
- GitHub Advisory GHSA-694g-9jgf-5566 · GitHub Advisory Database
Cite this entry
"Malware in mcp-server-boilerplate." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 31, 2026; last updated July 31, 2026. https://supplychainattack.org/incident/malware-in-mcp-server-boilerplate-1jiup8
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