Malware in ui-core-system
Malware discovered in the npm package ui-core-system. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with ui-core-system installed or running
- Ecosystems
- Attack vectors
- Affected entities
- ui-core-system
The npm package ui-core-system has been identified as containing malware. According to the GitHub Advisory (GHSA-9x83-p3mj-p224), 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 initial compromise, as the attacker may have gained full control of the system.\n\nThis is a critical supply chain incident affecting the npm ecosystem, with the potential to compromise any developer or system that has installed this package.
Indicators of compromise
- Packages
- ui-core-system
Remediation
- Immediately isolate any computer with ui-core-system installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the ui-core-system package from all affected systems
- Perform a full security audit and malware scan on all affected systems
- Review access logs and monitor for unauthorized activity on systems that had this package installed
- Consider the affected systems as potentially fully compromised and plan for complete rebuild if critical systems are involved
Sources
- GitHub Advisory GHSA-9x83-p3mj-p224 · GitHub Advisory Database
Cite this entry
"Malware in ui-core-system." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 24, 2026; last updated June 24, 2026. https://supplychainattack.org/incident/malware-in-ui-core-system-1l4y8i
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