Malware in sso-users-detection
The npm package sso-users-detection was found to contain malware, resulting in full system compromise of any computer with the package installed or running. GitHub Security Advisory GHSA-x9p4-637q-6wjw documents the incident.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- sso-users-detection
The npm package sso-users-detection was identified as containing malware. According to the GitHub Security Advisory, 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 system. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning removal of the package alone may not eliminate all malicious software resulting from the installation.\n\nThis represents a critical supply chain compromise affecting the npm ecosystem.
Indicators of compromise
- Packages
- sso-users-detection
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the sso-users-detection package from all affected systems
- Assume full system compromise and conduct forensic analysis
- Audit all systems that had this package installed for signs of unauthorized access or data exfiltration
- Review and revoke any credentials or API keys that may have been exposed
Sources
- GitHub Advisory GHSA-x9p4-637q-6wjw · GitHub Advisory Database
Cite this entry
"Malware in sso-users-detection." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 31, 2026; last updated August 1, 2026. https://supplychainattack.org/incident/malware-in-sso-users-detection-hz7i4j
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