# MAL-2026-2138: Malicious code in open-vp-cal (PyPI)


- **Type:** Malicious package
- **Package:** `open-vp-cal` (PyPI)
- **Published:** 24 Mar 2026

## What is MAL-2026-2138?

MAL-2026-2138 is a malicious package in open-vp-cal, published on 24 Mar 2026. 

### Official description

When executing the module, the code installs a package from a remote location. The remote package contains malicious code exfiltrating selected env variables and selected information from credential files. The code claims to be security research.

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

Campaign: 2026-03-open-vp-cal

Reasons (based on the campaign):

 - exfiltration-env-variables

 - Downloads and executes a remote malicious script.

 - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

## What should I do about MAL-2026-2138?

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-2026-2138 is a malicious package: open-vp-cal (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-2026-2138/ (Markdown: https://insights.sbomify.com/MAL-2026-2138/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-2138

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-2138/
Summaries are generated and may contain mistakes; the official description above is the record.