Vulnerability from bitnami_vulndb
Published
2026-01-13 08:53
Modified
2026-01-13 09:11
Summary
virtualenv Has TOCTOU Vulnerabilities in Directory Creation
Details

virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, TOCTOU (Time-of-Check-Time-of-Use) vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv's app_data and lock file operations to attacker-controlled locations. This issue has been patched in version 20.36.1.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "virtualenv",
        "purl": "pkg:bitnami/virtualenv"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20.36.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-22702"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:virtualenv:virtualenv:*:*:*:*:*:python:*:*"
    ],
    "severity": "Medium"
  },
  "details": "virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, TOCTOU (Time-of-Check-Time-of-Use) vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv\u0027s app_data and lock file operations to attacker-controlled locations. This issue has been patched in version 20.36.1.",
  "id": "BIT-virtualenv-2026-22702",
  "modified": "2026-01-13T09:11:00.781Z",
  "published": "2026-01-13T08:53:06.703Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/virtualenv/pull/3013"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22702"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "virtualenv Has TOCTOU Vulnerabilities in Directory Creation"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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