MAL-2026-5440 Malicious code in exodus-ethereum-sdk (npm)
Malicious package
Published
MAL-2026-5440 is a malicious package: exodus-ethereum-sdk (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-5440/ (Markdown: https://insights.sbomify.com/MAL-2026-5440/index.md)
- Package
- exodus-ethereum-sdk
- Registry
- npm
What is MAL-2026-5440?
MAL-2026-5440 is a malicious package in exodus-ethereum-sdk, published on 9 Jun 2026.
Official description
Package name impersonates the Exodus cryptocurrency wallet brand and ships no real functionality (src/index.js exports an empty object; package.json self-describes as a 'HackerOne PoC'). The package.json declares a postinstall hook (
node src/canary.js) which fires automatically on npm install. src/canary.js performs a DNS lookup and HTTPS GET to a hardcoded 96e03fa6c292469a-172-245-86-254.serveousercontent.com subdomain — Serveo is an anonymous reverse-tunnel service, so the destination is operator-controlled and not tied to any identifiable publisher. Each install reveals the installer's public IP and DNS resolver to whoever currently controls that tunnel. Combined with the brand-impersonating name (installers may pull this expecting a legitimate Exodus SDK), the package functions as an install-time beacon against unsuspecting installers regardless of the author's stated 'research' intent.What should I do about MAL-2026-5440?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.