Malware in mchain-sdk
The npm package mchain-sdk contains malware that grants 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 mchain-sdk installed or running
- Ecosystems
- Attack vectors
- Affected entities
- mchain-sdknpm package containing malware
The npm package mchain-sdk has been identified as containing malware. According to the GitHub Advisory (GHSA-frcx-7v83-jfwx), any computer that has this package installed or running should be considered fully compromised.\n\nAffected users should immediately rotate all secrets and keys stored on the compromised computer from a different, unaffected 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 outside entity may have gained full control of the system.\n\nThe advisory was published on 2026-07-09 via the GitHub Advisory Database.
Indicators of compromise
- Packages
- mchain-sdk
Remediation
- Immediately rotate all secrets and keys from a different, unaffected computer
- Remove the mchain-sdk package from all affected systems
- Assume full system compromise and conduct forensic analysis
- Monitor affected systems for signs of persistent malware or unauthorized access
- Consider rebuilding affected systems from clean media if critical infrastructure is involved
Sources
- GitHub Advisory GHSA-frcx-7v83-jfwx · GitHub Advisory Database
Cite this entry
"Malware in mchain-sdk." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 9, 2026; last updated July 9, 2026. https://supplychainattack.org/incident/malware-in-mchain-sdk-e0clnv
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- resolvedcritical
Malicious code in test2221 (npm)
The npm package test2221 version 2.2.4 was identified as malicious by the OpenSSF Package Analysis project. The package executes commands associated with malicious behavior.
npmCompromised package - containedcritical
Malware in n8n-nodes-trust-me-im-totally-safe
Malware was discovered in the npm package n8n-nodes-trust-me-im-totally-safe, resulting in full system compromise for any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
npmCompromised package - activecritical
Malware in litespeed-cache
Malware discovered in the npm package litespeed-cache. The package grants full system compromise to attackers, requiring immediate removal and credential rotation from a clean system.
npmCompromised package - containedcritical
Malware in open-worker-cli
Malware was discovered in the npm package open-worker-cli. Systems with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
npmCompromised package