{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "20.26.6"
                  },
                  {
                    "fixed": "21.14.2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "602b26623a724827ff171bf11fef4ad186d01f74"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "21.14.2",
                "range": [
                  {
                    "fixed": "a6bdda0220f664c04042f063bd7344f800934559"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "ec04726d065372ffad9920998aef1ce41252a61d"
            },
            {
              "fixed": "a6bdda0220f664c04042f063bd7344f800934559"
            },
            {
              "fixed": "602b26623a724827ff171bf11fef4ad186d01f74"
            }
          ],
          "repo": "https://github.com/pypa/virtualenv",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8rjx-v5ww-45pp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-78",
      "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113776.json"
  },
  "details": "virtualenv is a tool for creating isolated virtual python environments. From 20.26.6 until 21.14.2, ViaTemplateActivator.instantiate_template() replaces placeholders one key at a time across the complete activation template, so trigger names such as __VIRTUAL_NAME__, __VIRTUAL_ENV__, or __VIRTUAL_PROMPT__ inside an already substituted and quoted environment path or prompt can be replaced during a later pass. The later value's quoting can close the earlier literal and execute the remaining path when a user activates the environment through bash, fish, xonsh, or activate_this.py. The distinct csh prompt-display token __VIRTUAL_PROMPT_DISPLAY_TCSH__ can instead break the generated script without establishing command execution. The attacker must influence the destination path or --prompt, and a value without a relevant placeholder name does not trigger this mechanism. This issue is fixed in version 21.14.2.",
  "id": "CVE-2026-113776",
  "modified": "2026-10-21T10:31:09.710231045Z",
  "published": "2026-10-20T22:03:18.274Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113776.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pypa/virtualenv/commit/602b26623a724827ff171bf11fef4ad186d01f74"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/virtualenv/releases/tag/21.14.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-8rjx-v5ww-45pp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113776"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "virtualenv activation scripts run code from a path that contains a placeholder name"
}