Malware in cktool-core
Malware was discovered in the npm package cktool-core. Systems with the package installed or running are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with cktool-core installed or running
- Ecosystems
- Attack vectors
- Affected entities
- cktool-core
A malware incident was identified in the npm package cktool-core, as documented in GitHub Advisory GHSA-qm37-v399-r9m5. The advisory indicates that any computer with this package installed or running should be considered fully compromised.\n\nThe malicious package grants outside entities full control of affected systems. All secrets and keys stored on compromised computers should be rotated immediately from a different, unaffected system. While the package can 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.\n\nThe incident was published on 2026-07-23 via the GitHub advisory system.
Indicators of compromise
- Packages
- cktool-core
Remediation
- Immediately remove cktool-core from all systems
- Rotate all secrets and keys stored on affected computers from a different, unaffected computer
- Assume full system compromise and conduct forensic analysis
- Monitor affected systems for signs of persistent malware or backdoors
- Review system logs and network traffic for indicators of compromise
- Consider full system rebuild or replacement if forensic analysis confirms persistent compromise
Sources
- GitHub Advisory GHSA-qm37-v399-r9m5 · GitHub Advisory Database
Cite this entry
"Malware in cktool-core." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 23, 2026; last updated July 23, 2026. https://supplychainattack.org/incident/malware-in-cktool-core-12lvfy
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