Malware in npmjs_solc-helper
The npm package npmjs_solc-helper contained malware, potentially granting full system compromise to attackers. Any system with this package installed should be considered fully compromised and all secrets and keys rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- npmjs_solc-helperMalware-containing package
The npm package npmjs_solc-helper was found to contain malware. According to the GitHub Advisory (GHSA-83h3-h848-fqr8), 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 computer. 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 initial compromise, given that the attacker may have gained full control of the system.\n\nThis is a critical supply chain incident affecting the npm ecosystem.
Indicators of compromise
- Packages
- npmjs_solc-helper
Remediation
- Immediately rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the npmjs_solc-helper package from all affected systems
- Audit system logs and file integrity for signs of additional malicious activity
- Consider full system reimaging or replacement if full compromise is suspected
- Review and revoke any access tokens or credentials that may have been exposed
Sources
- GitHub Advisory GHSA-83h3-h848-fqr8 · GitHub Advisory Database
Cite this entry
"Malware in npmjs_solc-helper." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 10, 2026; last updated June 10, 2026. https://supplychainattack.org/incident/malware-in-npmjs-solc-helper-pq3yi2
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