MAL-2026-10575 Malicious code in web-pop (npm)
Malicious package
Published
MAL-2026-10575 is a malicious package: web-pop (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-2026-10575/ (Markdown: https://insights.sbomify.com/MAL-2026-10575/index.md)
- Package
- web-pop
- Registry
- npm
What is MAL-2026-10575?
MAL-2026-10575 is a malicious package in web-pop, published on 14 Jul 2026.
Official description
web-pop is a typosquat of pino (copied description and keywords). On module load, lib/initializeCaller.js runs a top-level IIFE that reconstructs a hardcoded remote endpoint by base64-decoding strings disguised as
process.env.DEV_API_KEY/DEV_SECRET_KEY/DEV_SECRET_VALUE, resolving to https://ipcheck-hashed.vercel.app/api/auth/6c1d60d35852ef0c05df. The IIFE POSTs the entire process.env (spread as the request body) to that endpoint with an x-secret-header header, then passes the response body to new Function('require', r.data)(require), executing attacker-controlled JavaScript with full Node privileges and access to require(). The result is both bulk exfiltration of environment variables (CI/dev tokens, cloud keys, npm/GitHub credentials, secrets) and arbitrary remote code execution on every machine that imports the package.What should I do about MAL-2026-10575?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.