MAL-2026-14392 Malicious code in message-compiler (npm)
Malicious package
Published
MAL-2026-14392 is a malicious package: message-compiler (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-2026-14392/ (Markdown: https://insights.sbomify.com/MAL-2026-14392/index.md)
- Package
- message-compiler
- Registry
- npm
What is MAL-2026-14392?
MAL-2026-14392 is a malicious package in message-compiler, published on 24 Aug 2026.
Official description
The package declares scripts.preinstall = 'node vishu.js', which runs automatically on npm install. vishu.js resolves the installer's public IP via api.ipify.org, reads CI-related environment variables (CI, GITHUB_ACTIONS, GITHUB_WORKFLOW, GITHUB_RUN_ID and related), and issues an HTTPS GET to a hardcoded webhook.site collector URL carrying those fields. It additionally performs a DNS lookup of a subdomain constructed from os.hostname() under a hardcoded oastify.com (Burp Collaborator) domain, exfiltrating the installer's hostname via DNS. The package name typosquats the scoped @intlify/message-compiler package and its only functional code is this beacon.
What should I do about MAL-2026-14392?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.