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containedcritical

Malware in eth-base

Malware was discovered in the eth-base npm package. Any computer with this package installed or running should be considered fully compromised, with all secrets and keys at risk.

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Disclosed
Last updated
Blast radius
Any system with eth-base installed or running; all secrets and keys on affected systems are at risk.
Ecosystems
npm
Attack vectors
Compromised package
Affected entities
  • eth-basenpm package

The eth-base npm package was found to contain malware. According to the GitHub Advisory (GHSA-26h4-2435-hp66), 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, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise.\n\nThis is a critical supply chain incident affecting the npm ecosystem, with potential impact to all users who installed or ran the affected package.

Indicators of compromise

Packages
  • eth-base

Remediation

  • Immediately rotate all secrets and keys stored on affected computers from a different, uncompromised system
  • Remove the eth-base package from all affected systems
  • Audit system logs and file integrity for signs of additional malicious activity
  • Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
  • Check for any downstream dependencies on eth-base and assess their security posture

Sources

  1. GitHub Advisory GHSA-26h4-2435-hp66 · GitHub Advisory Database

Cite this entry

"Malware in eth-base." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 23, 2026; last updated July 23, 2026. https://supplychainattack.org/incident/malware-in-eth-base-mqukt7

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