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UnratedFix available

virtualenv 21.14.4

Type: patchSources: virtualenv

virtualenv 21.14.4 fixes command execution involving crafted virtual environment names or prompts when zsh has PROMPT_SUBST enabled.

Products
virtualenv
Affected versions
Not specified
Fixed versions
21.14.4
CVEs
Not specified
Confirmed fixed CVEs
Not specified
Updated in this feed
29 Oct 2026, 22:24 UTC · Revision 1

Source evidence

virtualenv 21.14.4

github-pypa-virtualenv · Original source

Published 18 Oct 2026, 19:14 UTC

virtualenv 21.14.4 fixes command execution involving crafted virtual environment names or prompts when zsh has PROMPT_SUBST enabled.

Fix activate running commands from a virtual environment name or --prompt that holds $(...), backticks or ${...} when zsh has PROMPT_SUBST set

virtualenv

Fixed versions: 21.14.4

Prerequisites: zsh has PROMPT_SUBST set

Complete source record
{
  "id": "ed67658bd8c23a63cf08376dac2c3f87d06979e10e1f1dcabb94d28c434c9bd5",
  "url": "https://github.com/pypa/virtualenv/releases/tag/21.14.4",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "virtualenv 21.14.4",
    "summary": "virtualenv 21.14.4 fixes command execution involving crafted virtual environment names or prompts when zsh has PROMPT_SUBST enabled.",
    "evidence": "Fix activate running commands from a virtual environment name or --prompt that holds $(...), backticks or ${...} when zsh has PROMPT_SUBST set",
    "products": [
      {
        "name": {
          "value": "virtualenv",
          "evidence": "Release notes from virtualenv"
        },
        "prerequisites": [
          {
            "value": "zsh has PROMPT_SUBST set",
            "evidence": "when zsh has PROMPT_SUBST set"
          }
        ],
        "fixed_versions": [
          {
            "value": "21.14.4",
            "evidence": "21.14.4"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-pypa-virtualenv",
  "document_id": 22316,
  "published_at": "2026-10-18T19:14:01+00:00"
}