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Twenty-nine hours after mbt@1.2.48 and @cap-js/sqlite@2.2.2 were compromised by the Shai-Hulud worm, a third major npm package has fallen: intercom-client@7.0.4, the official Node.js SDK for the Intercom customer messaging platform, with 361,510 weekly downloads — more than the two yesterday’s compromised packages combined. The malicious version was published today at 14:41 UTC via a hijacked GitHub Actions OIDC publishing pipeline, confirming the worm is actively propagating through CI/CD infrastructure stolen from yesterday’s victims.

On April 30, 2026, a supply chain compromise was identified in the lightning PyPI package — versions 2.6.2 and 2.6.3. The project’s GitHub account shows signs of compromise, with issues reporting the attack closed rapidly by suspicious responses.

StepSecurity has detected a new npm supply chain attack campaign using preinstall hooks to download the Bun JavaScript runtime and execute an 11 MB obfuscated payload. At least two SAP-ecosystem packages are confirmed compromised so far.