MAL-2026-10212 Malicious code in vuln-package (npm)
Malicious package
Published
MAL-2026-10212 is a malicious package: vuln-package (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-2026-10212/ (Markdown: https://insights.sbomify.com/MAL-2026-10212/index.md)
- Package
- vuln-package
- Registry
- npm
What is MAL-2026-10212?
MAL-2026-10212 is a malicious package in vuln-package, published on 12 Jul 2026.
Official description
On npm install, the package's preinstall script triggers a DNS lookup to a unique subdomain of oast.fun (fabekzbnjtufpffkzzmvjvi5eafhny3ok.oast.fun), an out-of-band interaction service, confirming code execution on the installer's machine to a third-party collector. A sibling file indexCopy.js collects host identifiers (os.userInfo().username, os.hostname(), process.cwd(), and process.env references) and issues an https.request POST to a hardcoded webhook.site endpoint (https://webhook.site/cde465c1-3853-40ea-880c-fdca6fe508cc). The combination of an OOB DNS beacon at install time and a staged HTTPS exfiltration payload targeting installer host identifiers is characteristic of a supply-chain reconnaissance/exfiltration attack rather than any legitimate package behavior.
What should I do about MAL-2026-10212?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.