Malware in janus-flow
Malware was discovered in the npm package janus-flow, resulting in full system compromise of any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with janus-flow installed or running
- Ecosystems
- Attack vectors
- Affected entities
- janus-flow
A critical malware incident was identified in the npm package janus-flow. According to the GitHub Advisory (GHSA-pcx2-ghwc-5cp6), 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, given that the attacker may have gained full control of the system.\n\nAffected users should treat their systems as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- janus-flow
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the janus-flow package from all affected systems
- Conduct a full security audit and forensic analysis of any system that had janus-flow installed
- Monitor affected systems for signs of persistent malware or unauthorized access
- Consider rebuilding affected systems from clean media if full compromise is suspected
Sources
- GitHub Advisory GHSA-pcx2-ghwc-5cp6 · GitHub Advisory Database
Cite this entry
"Malware in janus-flow." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 16, 2026; last updated June 16, 2026. https://supplychainattack.org/incident/malware-in-janus-flow-ttuihn
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