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Malware in html-to-gutenberg

The npm package html-to-gutenberg was found to contain malware. Any computer with this package installed or running should be considered fully compromised.

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Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
npm
Attack vectors
Compromised package
Affected entities
  • html-to-gutenberg

The npm package html-to-gutenberg has been identified as containing malware. According to the GitHub advisory, 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 package installation, as the attacker may have gained full control of the system.\n\nAffected users should treat any system that has run this package as potentially compromised and take appropriate incident response measures.

Indicators of compromise

Packages
  • html-to-gutenberg

Remediation

  • Immediately isolate any computer that has installed or run html-to-gutenberg from the network
  • Rotate all secrets, API keys, and credentials from a different, uncompromised computer
  • Remove the html-to-gutenberg package from all systems
  • Conduct a full security audit and malware scan of affected systems
  • Review system logs and network traffic for signs of unauthorized access or data exfiltration
  • Consider full system reimaging if the package was installed on production or sensitive systems

Sources

  1. GitHub Advisory GHSA-2gqj-wrf5-35w8 · GitHub Advisory Database

Cite this entry

"Malware in html-to-gutenberg." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 24, 2026; last updated June 24, 2026. https://supplychainattack.org/incident/malware-in-html-to-gutenberg-m00rri

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