cosmos-cuda

Details

**Severity:** Critical

**Affected versions:** `= 9999.0.0`

## Source: amazon-inspector (c1a96e5776ec64356f639738134c95a2f33233a4275d2d0ddd6b174c297c64ee)
The sdist-only package cosmos-cuda 9999.0.0 executes a beacon function `_beacon('build')` from setup.py during sdist build/install and `_beacon('import')` from cosmos_cuda/__init__.py at import. Both code paths collect the installer's hostname, current username, and current working directory, then transmit them to the hardcoded external host `oob.asyncrun.in` via a DNS lookup of a crafted FQDN (socket.getaddrinfo) and via an HTTPS/HTTP GET request (urllib.request.urlopen). The package ships only as an sdist and uses version 9999.0.0 so that pip's highest-version resolution selects it when a name collision exists against an internal package resolved through `--extra-index-url`, forcing setup.py execution during install and producing arbitrary code execution and exfiltration on installers whose environment resolves the name.

## Source: kam193 (bd8651969d2a82aa0c96bae9bce8bffaa3053dc4093fcafc614f7cda24b19542)
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.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/cosmos-cuda/MAL-2026-10617.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/cosmos-cuda
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/cosmos-cuda/MAL-2026-10617.json
- https://pypi.org/project/cosmos-cuda/9999.0.0
- https://github.com/advisories/GHSA-885f-cx48-w3cj

Compromised versions (1)

• = 9999.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.