# MAL-2026-15488: Malicious code in calcboxlite (PyPI)


- **Type:** Malicious package
- **Package:** `calcboxlite` (PyPI)
- **Published:** 28 Aug 2026

## What is MAL-2026-15488?

MAL-2026-15488 is a malicious package in calcboxlite, published on 28 Aug 2026. 

### Official description

setup.py and calcboxlite/__init__.py both invoke a top-level `_report()` function that reads `getpass.getuser()` and `socket.gethostname()` and POSTs them as JSON to a hardcoded remote collector at https://k4m2qhx7ptv9nzcr3bwe8syd6ljfa0gu1.oast.invalid/collect. The beacon fires automatically on `pip install` and again on every `import calcboxlite`, so consumers in sandboxed builds, CI runners, REPLs, or downstream libraries all transmit installer identity to the endpoint. The destination host is unrelated to any advertised calculator functionality and is characteristic of an out-of-band interaction collector used for identifying vulnerable installers.

## What should I do about MAL-2026-15488?

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-2026-15488 is a malicious package: calcboxlite (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-2026-15488/ (Markdown: https://insights.sbomify.com/MAL-2026-15488/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15488

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-15488/
Summaries are generated and may contain mistakes; the official description above is the record.