Malware in winston-prism
Malware discovered in the npm package winston-prism. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with winston-prism installed or running
- Ecosystems
- Attack vectors
- Affected entities
- winston-prismnpm package containing malware
The npm package winston-prism has been identified as containing malware. According to the GitHub Advisory (GHSA-3xpg-2wmm-jjj2), any computer with 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 compromise.\n\nThis represents a critical supply chain attack through a compromised package in the npm ecosystem, with potential for complete system compromise on any machine where it was installed.
Indicators of compromise
- Packages
- winston-prism
Remediation
- Immediately remove the winston-prism package from all systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Assume full system compromise and conduct forensic analysis
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider rebuilding affected systems from clean media if possible
- Monitor for any persistence mechanisms that may have been installed
Sources
- GitHub Advisory GHSA-3xpg-2wmm-jjj2 · GitHub Advisory Database
Cite this entry
"Malware in winston-prism." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-winston-prism-a3j1xi
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