# MAL-2026-4621: Malicious code in nolimit-x (npm)


- **Type:** Malicious package
- **Package:** `nolimit-x` (npm)
- **Published:** 20 May 2026
- **Also known as:** GHSA-cp8c-2xwh-q227

## What is MAL-2026-4621?

MAL-2026-4621 is a malicious package in nolimit-x, published on 20 May 2026. 

### Official description

nolimit-x ships an entirely obfuscator.io-packed runtime (45 files under.ad/, including the x0.js entrypoint) with no readable source, and devDependencies + the build script confirm the obfuscation is intentional (`build: node scripts/obfuscate.js`, `javascript-obfuscator` in devDependencies). The decoded entrypoint exposes a CLI offensive toolkit: a `send` subcommand for bulk SMS via SMTP-to-carrier email gateways and bulk email; an `auth` subcommand performing OAuth device-code flows against Microsoft and Google to obtain SMTP + Microsoft Graph credentials; an `extract` subcommand that reads a victim mailbox's contacts via Graph + IMAP and writes them to disk; a `web` subcommand that injects a sending panel into a logged-in Chrome webmail tab; a `dkim` subcommand that generates DKIM keys for arbitrary sender domains; and `scan-redirects`. README markets it as an "Advanced email sender" with keywords including "red-team" and "smtp". A hardcoded license check (`http://api.nolimitent.xyz:4100/api/activate`) POSTs hardware ID, license key, hostname, and platform in cleartext when the operator runs license-gated subcommands. main and bin both point at.ad/x0.js, which calls program.parse() at module top level — a consumer that require()s the package will run commander against the consumer's process.argv (no network fires until argv matches a subcommand, but the library/CLI conflation plus pervasive obfuscation make pre-install audit infeasible). The package is a packaged phishing/spam/credential-phishing toolkit dressed as an npm library; installer-side harm is bounded (no auto-exfil at install or import), but the package's purpose is to enable attacks on third parties (mailbox owners, SMS recipients, OAuth account holders), and the obfuscation defeats normal supply-chain audit.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-4621?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-4621 is a malicious package: nolimit-x (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-2026-4621/ (Markdown: https://insights.sbomify.com/MAL-2026-4621/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-4621

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-4621/
Summaries are generated and may contain mistakes; the official description above is the record.