# MAL-2026-3031: Malicious code in swampo (PyPI)


- **Type:** Malicious package
- **Package:** `swampo` (PyPI)
- **Published:** 24 Apr 2026

## What is MAL-2026-3031?

MAL-2026-3031 is a malicious package in swampo, published on 24 Apr 2026. 

### Official description

Multi-stage dropper. The "analytics" functionality fetches fake updates information that should contain the next URL. From it, a yet another URL is downloaded, and then used to perform TXT DNS queries holding the encoded next URL. From this URL, a remote script is fetched and executed. During analysis, retrieving the final payload was not successful.

---

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

Campaign: 2026-04-swampo

Reasons (based on the campaign):

 - Downloads and executes a remote malicious script.

 - action-hidden-in-lib-usage

## What should I do about MAL-2026-3031?

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-2026-3031 is a malicious package: swampo (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-2026-3031/ (Markdown: https://insights.sbomify.com/MAL-2026-3031/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-3031

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-3031/
Summaries are generated and may contain mistakes; the official description above is the record.