OS Command Injection Affecting py3.12-virtualenv-bin package, versions <21.7.13-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-PY312VIRTUALENVBIN-20542321
  • published7 Oct 2026
  • disclosed29 Sept 2026

Introduced: 29 Sep 2026

NewCVE-2026-102925  (opens in a new tab)
CWE-78  (opens in a new tab)

How to fix?

Upgrade Minimos:latest py3.12-virtualenv-bin to version 21.7.13-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3.12-virtualenv-bin package and not the py3.12-virtualenv-bin package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.13, the generated activate (bash and zsh) and activate.fish scripts place values already escaped by shlex.quote inside an additional quoted context. In the bash and zsh script, a crafted virtual environment path reaches VIRTUAL_ENV when a relocated environment's recorded directory is absent; in the fish script, crafted Tcl or Tk library paths reach TCL_LIBRARY or TK_LIBRARY. The surplus quotes can terminate the data-only quoted run and leave shell metacharacters parsed as commands when a user sources the activation script, allowing code execution with that user's privileges. This issue is fixed in version 21.7.13.

CVSS Base Scores

version 3.1