MAL-2026-13965 Malicious code in nc-verify-127942 (npm)
Malicious package
Published
MAL-2026-13965 is a malicious package: nc-verify-127942 (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-2026-13965/ (Markdown: https://insights.sbomify.com/MAL-2026-13965/index.md)
- Package
- nc-verify-127942
- Registry
- npm
What is MAL-2026-13965?
MAL-2026-13965 is a malicious package in nc-verify-127942, published on 13 Aug 2026.
Official description
nc-verify-127942 declares a postinstall lifecycle hook ("postinstall": "node install-cb.js") that runs automatically on npm install. The install-cb.js script issues an HTTPS request and a DNS lookup to a Burp Collaborator subdomain under oastify.com (nc-verify-127942.owoemjgpf2c4qxqet92hexzvym4dsq6skvoa2cr.oastify.com), which confirms code execution on the installer's host and leaks install-side network identifiers (source IP, resolver) to an operator-controlled out-of-band endpoint. The package's own metadata labels it as a proof-of-concept for RCE verification; installing it in a normal developer or CI environment fires the beacon without any user interaction.
What should I do about MAL-2026-13965?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.