Open VSX

ChainDrop Malware Infects Over 1,300 npm Packages in Record Supply Chain Poisoning Campaign

Security researchers have uncovered a massive supply chain attack involving the ChainDrop malware that compromised more than 1,300 npm packages with a combined 2 billion monthly downloads. The malicious code silently steals npm tokens, GitHub credentials, and SSH keys before using stolen tokens to infect additional packages in a self-propagating loop. In a parallel incident, the Open VSX marketplace removed 77 malicious extensions that impersonated popular developer tools and harvested host and repository data. Attackers have also begun exploiting AI coding assistants through a technique called HalluSquatting, registering packages that match hallucinated names suggested by tools such as GitHub Copilot and Claude Code. The incidents highlight how modern supply chain threats now extend beyond direct dependencies to include AI-generated recommendations and automated publishing pipelines. Experts recommend strict lockfile usage, minimal token permissions, and manual verification of any package suggested by AI assistants.