Malware in web3-eth-utils
The npm package web3-eth-utils was compromised and distributed with malware. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the malicious package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- web3-eth-utilsnpm package containing malware
The npm package web3-eth-utils was found to contain malware. According to the GitHub advisory, any computer that has this package installed or running should be considered fully compromised.
The advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the malicious 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.
This is a critical supply chain attack affecting the npm ecosystem, with potential impact to all users and systems that have installed or executed this package.
Indicators of compromise
- Packages
- web3-eth-utils
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the web3-eth-utils package from all affected systems
- Conduct a full security audit of any system that had this package installed
- Monitor affected systems for signs of unauthorized access or malicious activity
- Consider the affected system(s) as potentially fully compromised and take appropriate incident response measures
Sources
- GitHub Advisory GHSA-f5r2-qmg4-83w6 · GitHub Advisory Database
Cite this entry
"Malware in web3-eth-utils." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 14, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-web3-eth-utils-1hzz71
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