Command Injection Affecting virtualenv package, versions [21.14.8,21.14.9)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-VIRTUALENV-21282485
- published21 Oct 2026
- disclosed20 Oct 2026
- creditAnthropic's OSS Scanner
Introduced: 20 Oct 2026
NewCVE-2026-113722 (opens in a new tab)How to fix?
Upgrade virtualenv to version 21.14.9 or higher.
Overview
Affected versions of this package are vulnerable to Command Injection via the seed mechanism's console script launcher rewriting logic in pip_invoke.py when a virtual environment is created on POSIX systems with an interpreter path containing spaces. The _rewrite_launchers method rewrites pip-installed console script shebangs but fails to preserve the correct interpreter path, producing launchers that reference an incorrect or truncated executable. An attacker who can influence the virtual environment creation process or the scripts executed from it can leverage the malformed launchers to achieve arbitrary code execution with the privileges of the user invoking the script.