Key Findings Bitwarden CLI version 2026.4.0 was compromised through a malicious GitHub Action in the project's CI/CD pipeline, affecting the npm distribution mechanism The attack was part of the ongoing Checkmarx supply chain campaign, likely orchestrated by threat actor TeamPCP Malicious code in bw1.js executed a preinstall hook that stole GitHub tokens, npm credentials, SSH keys, cloud secrets, and shell history Stolen data was exfiltrated to a fake Checkmarx domain (audit.
