The npm Threat Landscape: Attack Surface and Mitigations (Updated July 15)

The npm ecosystem has faced escalating supply chain attacks since the emergence of the Shai-Hulud worm in September 2025. These attacks have evolved into sophisticated, wormable campaigns that steal credentials, propagate across packages, and establish persistent access in CI/CD pipelines. Recent operations, including Mini Shai-Hulud and Miasma variants, have targeted major organizations like Red Hat and AsyncAPI, using novel initial access techniques and resilient C2 infrastructure. The public release of Mini Shai-Hulud tooling has increased the risk of copycat campaigns.

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