Incorrect Permission Assignment for Critical Resource Affecting python-virtualenv package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN14-PYTHONVIRTUALENV-21435229
  • published23 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-113720  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 python-virtualenv.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-virtualenv package and not the python-virtualenv package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the app-data copy seeder uses shutil.copy() to copy cached package files into later environments, causing cached source modes to override the current run's umask. A cache populated under a permissive umask can therefore produce files writable by another local account in a later traversable environment, allowing package code such as pip/init.py to be modified and executed by the environment owner. The attacker cannot force the earlier umask, and a private destination parent prevents access. This issue is fixed in version 21.14.9.

CVSS Base Scores

version 3.1