# MAL-2026-11067: Malicious code in blessclient (PyPI)


- **Type:** Malicious package
- **Package:** `blessclient` (PyPI)
- **Published:** 25 Jul 2026

## What is MAL-2026-11067?

MAL-2026-11067 is a malicious package in blessclient, published on 25 Jul 2026. 

### Official description

The package name matches Lyft's internal `python-blessclient` and is published on the public index as a dependency-confusion tripwire. `setup.py` overrides the `install` command class (`InstallWithCanary`) to issue an HTTP GET to `http://canarytokens.com/about/static/obeoafaz522zscu7248tqu4rh/submit.aspx` during `pip install`, and `blessclient/__init__.py` fires the same beacon at import time via `urllib.request.urlopen(_CANARY_URL)`. The beacon body carries only what an ordinary HTTP GET reveals (source IP, User-Agent); no environment variables, filesystem contents, or credentials are read or transmitted, and no code is fetched or executed. The destination is the canarytokens.com research service rather than attacker-controlled infrastructure. Installing this package discloses the fact and source of the install to whoever configured the canary token, and executes network I/O at install and import time without opt-out.

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

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Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

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

 - The package overrides the install command in setup.py to execute malicious code during installation.

## What should I do about MAL-2026-11067?

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-2026-11067 is a malicious package: blessclient (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-2026-11067/ (Markdown: https://insights.sbomify.com/MAL-2026-11067/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11067

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11067/
Summaries are generated and may contain mistakes; the official description above is the record.