# MAL-2026-12323: Malicious code in @nasddatax/common (npm)


- **Type:** Malicious package
- **Package:** `@nasddatax/common` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-mx45-4vrr-4fgp

## What is MAL-2026-12323?

MAL-2026-12323 is a malicious package in @nasddatax/common, published on 5 Aug 2026. 

### Official description

build/index.js appends an eval(atob(...)) trailer after legitimate re-exports. On require, the decoded loader queries public Ethereum JSON-RPC endpoints for the latest transaction from the hardcoded address 0xa322E5f3D311D3080e6f0121063e9aDC2490Ef1a, decodes the 20-byte tx.to value into two IPv4 addresses, fetches an XOR-obfuscated JavaScript payload from http://<ip>:443/0x/cls and http://<ip>:443/0x/ls, decodes an x-payload-b64 response header, and executes the result via eval and a detached spawn('node', ['-e', payload]). Security-relevant identifiers (http, child_process, spawn, method and header strings) are written as \u00XX unicode escapes to hide the behavior. Any application that requires this package runs attacker-controlled code on the installer's machine, and the C2 destination can be rotated on-chain without republishing the package. Package metadata (empty author, empty description, scoped `<scope>/common` name) is consistent with an impostor common-utilities package.

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-2026-12323?

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-2026-12323 is a malicious package: @nasddatax/common (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-2026-12323/ (Markdown: https://insights.sbomify.com/MAL-2026-12323/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12323

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-12323/
Summaries are generated and may contain mistakes; the official description above is the record.