Malware in mcp-notes-server-poc-praetorian
The npm package mcp-notes-server-poc-praetorian contained malware that provided full system compromise to attackers. Any computer with this package installed should be considered fully compromised and all secrets and keys rotated immediately from a different machine.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- mcp-notes-server-poc-praetorian
The npm package mcp-notes-server-poc-praetorian was found to contain malware. According to the GitHub Security Advisory (GHSA-rfhm-2wfr-r9p2), 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 computer. While the package should be removed, the advisory notes that because full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a malicious npm package with full system compromise capabilities.
Indicators of compromise
- Packages
- mcp-notes-server-poc-praetorian
Remediation
- Immediately isolate any computer that has mcp-notes-server-poc-praetorian installed or running from the network
- Rotate all secrets, API keys, credentials, and cryptographic keys from a different, uncompromised computer
- Remove the mcp-notes-server-poc-praetorian package from all systems
- Perform a full security audit and malware scan of affected systems
- Review system logs and access logs for any unauthorized activity during the period the package was installed
- Consider full system reimaging if the package was installed on production or sensitive systems
Sources
- GitHub Advisory GHSA-rfhm-2wfr-r9p2 · GitHub Advisory Database
Cite this entry
"Malware in mcp-notes-server-poc-praetorian." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 23, 2026; last updated July 23, 2026. https://supplychainattack.org/incident/malware-in-mcp-notes-server-poc-praetorian-1k9wcv
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- containedcritical
Malware in app-data-lts
The npm package app-data-lts was found to contain malware, potentially giving full control of affected systems to an outside entity. Any computer with this package installed or running should be considered fully compromised.
npmCompromised package - containedcritical
Malware in app-data-ist
The npm package app-data-ist was found to contain malware, potentially giving full control of affected systems to an outside entity. All systems with this package installed should be considered fully compromised.
npmCompromised package - containedcritical
Malware in app-node-layer
Malware was discovered in the npm package app-node-layer. Systems with this package installed or running are considered fully compromised and require immediate remediation.
npmCompromised package - activecritical
Malware in app-data-layer
The npm package app-data-layer was found to contain malware, resulting in full system compromise of any computer with the package installed or running. All secrets and keys should be rotated immediately from a different computer.
npmCompromised package