MAL-2026-12198 Malicious code in simple-date-formatter-new-7 (npm)
Malicious package
Published
MAL-2026-12198 is a malicious package: simple-date-formatter-new-7 (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-2026-12198/ (Markdown: https://insights.sbomify.com/MAL-2026-12198/index.md)
- Package
- simple-date-formatter-new-7
- Registry
- npm
What is MAL-2026-12198?
MAL-2026-12198 is a malicious package in simple-date-formatter-new-7, published on 5 Aug 2026.
Official description
Package is advertised as a date-formatting utility but its
postinstall script probes an internal-range Kubernetes API (10.45.196.138:8080, endpoints /version, /api, /api/v1/namespaces, /api/v1/pods, /api/v1/secrets, /api/v1/nodes plus two adjacent hosts) and POSTs the concatenated responses to an out-of-band collector at safjhdvsfwzhieemkdzbgr54r0yjhrmok.oast.fun/escinfo11. Runs automatically on npm install. The tarball also ships a postinstall.js containing a getSSHKeys() function that enumerates ~/.ssh and POSTs a JSON payload with the directory listing, username, and platform to a hardcoded remote IP 124.221.154.135:443/post over HTTPS. The advertised purpose (formatDate() in index.js) is a thin cover story unrelated to the shipped install-time behavior.What should I do about MAL-2026-12198?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.