MAL-2026-16479 Malicious code in simplenewnpmpackage (npm)
Malicious package
Published
MAL-2026-16479 is a malicious package: simplenewnpmpackage (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-2026-16479/ (Markdown: https://insights.sbomify.com/MAL-2026-16479/index.md)
- Package
- simplenewnpmpackage
- Registry
- npm
What is MAL-2026-16479?
MAL-2026-16479 is a malicious package in simplenewnpmpackage, published on 23 Sep 2026.
Official description
On require/import, index.js issues an HTTPS GET to a hardcoded interactsh OAST subdomain (dapnhid534ch06s9vpm0mbg1httu5gytc.oast.fun) with the installer's os.platform() and os.hostname() as query parameters. The package ships no other functionality; its main module exists solely to fire this out-of-band beacon on load. oast.fun is a public out-of-band interaction collector used to receive callbacks from targets, and the hardcoded subdomain is bound to a specific listener controlled by whoever published the package. This is the canonical dependency-confusion / namesquat probe pattern, in which a package is published to catch internal-name mis-resolutions and report back the host that installed it.
What should I do about MAL-2026-16479?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.