Malware in lwc-slds-lbc
Malware was discovered in the npm package lwc-slds-lbc, resulting in full system compromise for any computer with the package installed or running. The advisory recommends immediate removal of the package and rotation of all secrets and keys from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- lwc-slds-lbc
A malware incident was identified in the npm package lwc-slds-lbc. According to the GitHub advisory, any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory states that all secrets and keys stored on affected computers should be rotated immediately from a different, uncompromised system. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning removal of the package alone may not eliminate all malicious software that resulted from the installation.\n\nThe incident was disclosed on 2026-07-20 via GitHub's advisory system.
Indicators of compromise
- Packages
- lwc-slds-lbc
Remediation
- Immediately remove the lwc-slds-lbc package from all systems
- Rotate all secrets, keys, and credentials from a different, uncompromised computer
- Assume full system compromise and conduct forensic analysis
- Review system logs for unauthorized access or activity
- Consider full system rebuild if critical infrastructure or sensitive data is involved
Sources
- GitHub Advisory GHSA-xm8f-w286-57x5 · GitHub Advisory Database
Cite this entry
"Malware in lwc-slds-lbc." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-lwc-slds-lbc-astsvk
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