Malware in keyed-mutex-map
Malware was discovered in the npm package keyed-mutex-map. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with keyed-mutex-map installed or running
- Ecosystems
- Attack vectors
- Affected entities
- keyed-mutex-mapnpm package
The npm package keyed-mutex-map was found to contain malware. According to the GitHub Advisory (GHSA-vcgv-x4wj-fr9f), any computer with 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 compromise.\n\nThis represents a critical supply chain attack through a compromised package in the npm ecosystem.
Indicators of compromise
- Packages
- keyed-mutex-map
Remediation
- Immediately isolate any system with keyed-mutex-map installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the keyed-mutex-map package from all systems
- Perform a full security audit and malware scan on affected systems
- Review system logs for any unauthorized access or activity during the period the package was installed
- Consider full system reimaging if the package was installed on critical infrastructure
Sources
- GitHub Advisory GHSA-vcgv-x4wj-fr9f · GitHub Advisory Database
Cite this entry
"Malware in keyed-mutex-map." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 13, 2026; last updated August 13, 2026. https://supplychainattack.org/incident/malware-in-keyed-mutex-map-12pd4o
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