Malware in npm-eslint-helper
Malware was discovered in the npm package npm-eslint-helper. Systems with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- npm-eslint-helper
The npm package npm-eslint-helper was found to contain malware. According to the GitHub Advisory (GHSA-74p5-mhgm-r8hr), 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 initial compromise.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for complete system compromise.
Indicators of compromise
- Packages
- npm-eslint-helper
Remediation
- Immediately rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the npm-eslint-helper package from all affected systems
- Audit system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
- Check for any other suspicious packages or modifications on affected systems
Sources
- GitHub Advisory GHSA-74p5-mhgm-r8hr · GitHub Advisory Database
Cite this entry
"Malware in npm-eslint-helper." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-npm-eslint-helper-5pkxyw
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