OS Command Injection Affecting python-virtualenv package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-DEBIAN13-PYTHONVIRTUALENV-21435256
  • published23 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-113732  (opens in a new tab)
CWE-78  (opens in a new tab)
CWE-116  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 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:13 relevant fixed versions and status.

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.2, FishActivator inherits ViaTemplateActivator.quote(), which uses POSIX shlex.quote() even though fish interprets backslashes and single quotes differently. An attacker-influenced environment path, --prompt, or VIRTUALENV_PROMPT value containing a backslash before a quote can therefore terminate the generated fish literal and execute command substitution when the user sources activate.fish. This issue is fixed in version 21.14.2.

CVSS Base Scores

version 3.1