Link Following Affecting python-virtualenv package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-DEBIAN14-PYTHONVIRTUALENV-21435219
  • published23 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-113721  (opens in a new tab)
CWE-59  (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, ViaTemplateActivator._generate() removes an existing output only when Path.exists() is true, allowing a dangling symlink to survive and redirect generated activation content, while PyEnvCfg.write() opens pyvenv.cfg without first replacing an existing symbolic or hard link. Another local account that prepares final entries inside the destination can therefore cause environment creation to create or overwrite files outside the requested tree with constrained virtualenv-generated content and the invoking user's permissions. The destination parent must remain controlled by the environment owner during creation; concurrent parent-directory replacement is a separate concern. This issue is fixed in version 21.14.9.

CVSS Base Scores

version 3.1