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Malware in leo-connector-mysql

Malware was discovered in the npm package leo-connector-mysql. Systems with this package installed are considered fully compromised and require immediate remediation.

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Disclosed
Last updated
Blast radius
Any system with leo-connector-mysql installed or running
Ecosystems
Attack vectors
Affected entities
  • leo-connector-mysql

The npm package leo-connector-mysql was found to contain malware. GitHub Security Advisory GHSA-474v-72pf-x6q5 was published on 2026-06-25 documenting the incident.\n\nAny computer with this package installed or running should be considered fully compromised. The malware may grant outside entities full control of affected systems. Complete removal of all malicious software cannot be guaranteed by simply uninstalling the package.\n\nImmediate action is required for all affected systems, including rotation of all secrets and keys from a separate, uncompromised computer.

Indicators of compromise

Packages
  • leo-connector-mysql

Remediation

  • Immediately remove leo-connector-mysql from all systems
  • Rotate all secrets, keys, and credentials from a separate, uncompromised computer
  • Conduct a full security audit of any system that had this package installed
  • Review system logs and network activity for signs of unauthorized access or data exfiltration
  • Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure

Sources

  1. GitHub Advisory GHSA-474v-72pf-x6q5 · GitHub Advisory Database

Cite this entry

"Malware in leo-connector-mysql." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 25, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-leo-connector-mysql-1otaie

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