Supply Chain Breach Compromises Checkmarx KICS Artifacts
🔐 Checkmarx's KICS Docker images and VS Code/Open VSX extensions were trojanized to harvest developer secrets. Dependency security firm Socket investigated after Docker alerted them to malicious images pushed to the official checkmarx/kics repository and found an embedded MCP addon that downloaded a credential-stealing module (mcpAddon.js). The malware targeted GitHub tokens, cloud credentials, npm tokens, SSH keys, Claude configs and environment variables, encrypting and exfiltrating them to audit.checkmarx.cx while creating public GitHub repositories to receive stolen data. Checkmarx removed the artifacts, rotated exposed credentials and advised developers to rotate secrets, pin image SHAs and rebuild from trusted sources.
