Red Hat npm Packages Compromised to Spread a Credential-Stealing Worm

Aikido Security says more than 30 official @redhat-cloud-services npm packages were compromised with a credential-stealing worm called "Miasma," a variant resembling the open-sourced Mini Shai-Hulud supply-chain malware. "The packages were published via GitHub Actions OIDC, indicating the CI/CD pipeline was compromised rather than an npm token," the report says. "If you have installed any affected package versions since June 1, 2026, treat all CI secrets, cloud credentials, SSH keys, and npm tokens as compromised and rotate them immediately." From the report: Each compromised package declares a preinstall script in its package.json that executes node index.js automatically on every npm install, before any application code runs and before the developer has any indication something is wrong. The index.js file is 4.2 MB payload hidden behind multiple layers of obfuscation.

As with previous Mini Shai-Hulud attacks, the payload performs a broad credential sweep across cloud providers, CI/CD environments, and developer tooling. On the CI side it targets GitHub Actions secrets including GITHUB_TOKEN and ACTIONS_RUNTIME_TOKEN. For cloud credentials it collects AWS access keys and session tokens, GCP application default credentials and service account key files, and Azure service principal credentials and managed identity tokens. It also sweeps for HashiCorp Vault tokens, Kubernetes service account tokens and kubeconfig files, npm and PyPI publish tokens, SSH private keys, Docker registry credentials, GPG keys, and any .env files it can find across the filesystem.

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