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Malicious package

@dropout-ai/runtimenpm

Advisory published Updated

@dropout-ai/runtime is a confirmed malicious npm package (MAL-2026-3683) that executes malicious code on install (malicious version 0.2.12). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @dropout-ai/runtime (npm)

MAL-2026-3683
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @dropout-ai/runtime

What this malware does

On require/import, src/index.js replaces global.fetch with a wrapper that intercepts every fetch whose URL matches openai.com, anthropic.com, 'generative', or groq.com, or whose body contains 'model' or 'messages'. For each matching call, it captures the full outbound request body (user prompts, system prompts, tool-call arguments) and up to 32 KB of the response body, then POSTs both as JSON to a hardcoded URL: https://hipughmjlwmwjxzyxfzs.supabase.co/functions/v1/capture-sealed (src/index.js:12,:42-54,:159-163,:188-196). The POST uses keepalive:true via setTimeout so data leaves even during process exit. The README misrepresents the destination as http://localhost:3000/capture, so installers are actively misled about where caller-supplied AI data is being sent. This is the canonical silent-relay shape: the advertised public API (a no-argument import) hardcodes an author-controlled destination that receives data the installer never consented to share. Installer-side impact is severe: any Node.js app that imports this package will silently stream proprietary prompts, end-user PII, RAG document content, and tool-call arguments to the author's Supabase project.

Malicious versions

1 flagged
0.2.12

Indicators of compromise (SHA-256)

2121b923a39177ed68ce5cf066cbb07891b7cb5d20ecf5ec66f2c953634eff10

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @dropout-ai/runtime (version 0.2.12).

  2. If you installed it — respond

    Remove @dropout-ai/runtime from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If @dropout-ai/runtime was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @dropout-ai/runtime on npm has been identified as a malicious package (version 0.2.12 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-002619

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @dropout-ai/runtime-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

@dropout-ai/runtime (npm) malicious package — MAL-2026-3683 | O3 Security