Malware in sjs-lint-build1
Malware discovered in the npm package sjs-lint-build1. The package grants full system compromise to attackers, requiring immediate removal and credential rotation from unaffected systems.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- sjs-lint-build1
The npm package sjs-lint-build1 has been identified as containing malware. According to the GitHub Advisory (GHSA-g48w-hprp-f478), 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, unaffected system. The package should be removed, though there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise.\n\nThis represents a critical supply chain attack through a malicious package in the npm ecosystem.
Indicators of compromise
- Packages
- sjs-lint-build1
Remediation
- Immediately remove the sjs-lint-build1 package from all systems
- Rotate all secrets, API keys, and credentials from a clean, unaffected computer
- Audit system logs for unauthorized access or activity during the period the package was installed
- Consider the affected system(s) fully compromised and plan for complete rebuild or forensic analysis
- Check for any other suspicious packages or dependencies that may have been installed alongside this package
Sources
- GitHub Advisory GHSA-g48w-hprp-f478 · GitHub Advisory Database
Cite this entry
"Malware in sjs-lint-build1." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-sjs-lint-build1-1j7c7n
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