Malware in fmt-helpers-794b
The npm package fmt-helpers-794b contains malware that grants full system compromise to an outside entity. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- fmt-helpers-794b
The npm package fmt-helpers-794b has been identified as containing malware. According to the GitHub Advisory (GHSA-4wmf-8x9r-34cc), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory indicates that all secrets and keys stored on affected computers should 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, given that the attacker may have gained full control of the system.\n\nThis is a critical supply chain attack affecting the npm ecosystem through a malicious package distribution."
Indicators of compromise
- Packages
- fmt-helpers-794b
Remediation
- Immediately isolate any computer with fmt-helpers-794b installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the fmt-helpers-794b package from all systems
- Perform a full security audit and malware scan on affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if the compromise is confirmed to be extensive
Sources
- GitHub Advisory GHSA-4wmf-8x9r-34cc · GitHub Advisory Database
Cite this entry
"Malware in fmt-helpers-794b." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 18, 2026; last updated June 20, 2026. https://supplychainattack.org/incident/malware-in-fmt-helpers-794b-15vith
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