# MAL-2026-5755: Malicious code in anthropickit (PyPI)


- **Type:** Malicious package
- **Package:** `anthropickit` (PyPI)
- **Published:** 14 Jun 2026

## What is MAL-2026-5755?

MAL-2026-5755 is a malicious package in anthropickit, published on 14 Jun 2026. 

### Official description

On `pip install`, setup.py collects the contents of every file in ~/.ssh (excluding known_hosts and authorized_keys, so private keys are read), all environment variables whose names contain KEY/SECRET/TOKEN/PASS/AUTH/API, plus the hostname and USER. The collected data is written to /tmp/runner_exfil.json and POSTed to https://enqqnvvtgrnyl.x.pipedream.net/. The package body is otherwise empty (__init__.py only sets __version__), the PKG-INFO metadata is all UNKNOWN, and the version is the sentinel 999.9.9 — a dependency-confusion pattern targeting developers searching for Anthropic-related tooling. Any installer (especially CI runners) running `pip install anthropickit` immediately loses SSH private keys and credential-shaped environment variables to an attacker-controlled pipedream webhook.

During installation, the package attempts to exfiltrate sensitive env variables and SSH keys.

---

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

Campaign: 2026-06-anthropickit

Reasons (based on the campaign):

 - exfiltration-ssh-keys

 - exfiltration-env-variables

## What should I do about MAL-2026-5755?

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-2026-5755 is a malicious package: anthropickit (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-2026-5755/ (Markdown: https://insights.sbomify.com/MAL-2026-5755/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5755

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-5755/
Summaries are generated and may contain mistakes; the official description above is the record.