CVE-2025-50817

high

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.

References

https://pypi.org/project/future/

https://medium.com/@abcd_68700/cve-2025-50817-python-future-module-arbitrary-code-execution-via-unintended-import-of-test-py-f0818ea93cf4

https://github.com/PythonCharmers/python-future

https://gist.github.com/fried/d2108a4932f3a22712dfc04598b5b8ce

Details

Source: Mitre, NVD

Published: 2025-08-14

Updated: 2025-09-26

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 8.6

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00017