# MAL-2026-54: Malicious code in lium-4-96 (PyPI)


- **Type:** Malicious package
- **Package:** `lium-4-96` (PyPI)
- **Published:** 5 Jan 2026

## What is MAL-2026-54?

MAL-2026-54 is a malicious package in lium-4-96, published on 5 Jan 2026. 

### Official description

This is a typosquatting/dependency confusion package that is part of a campaign embedding malicious code but was found before the malicious code was injected.
 
Packages in this campaign clone a legitimate library and add a hidden code that downloads a malicious script. The script then downloads an archive with malicious executable in the version appropriate to the system architecture, and ensures persistency by adding automatically started service entries. The remote code is a Go-based inforstealer and backdoor previously attributed to Nordkorean cybercrime activities. In this campaign, the malicious code is not immediately introduced in the typosquatted package, but added with an update.

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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-01-gztensor-cli

Reasons (based on the campaign):

 - crypto-related

 - action-hidden-in-lib-usage

 - Downloads and executes a remote executable.

 - clones-real-package

 - peristence-autorun

 - typosquatting

 - obfuscation

 - backdoor

 - infostealer

## What should I do about MAL-2026-54?

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-2026-54 is a malicious package: lium-4-96 (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-2026-54/ (Markdown: https://insights.sbomify.com/MAL-2026-54/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-54

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-54/
Summaries are generated and may contain mistakes; the official description above is the record.