virtualenv: Temporary app-data can leave dangling seed package links

{
  "id": "c698443ee02a4d7d1598c7f9d75ab3ada1b7637f384f927b8d333bce5f1def2d",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-113713",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "virtualenv: Temporary app-data can leave dangling seed package links",
    "summary": "virtualenv is a tool for creating isolated virtual python environments. From 21.14.8 until 21.14.10, the app-data seeder can leave an environment linked to temporary package files that virtualenv deletes when creation finishes. The environment-variable and configuration-file forms of symlink_app_data can enable this state even though the command-line flag is disabled for temporary app-data. The resulting environment depends on a cache pathname that its owner no longer controls. This issue is fixed in version 21.14.10.",
    "evidence": "cve:CVE-2026-113713",
    "products": [
      {
        "name": {
          "value": "virtualenv",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-113713",
      "aliases": [
        "CVE-2026-113713"
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 4.4,
            "attackVector": "LOCAL",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N",
            "userInteraction": "PASSIVE",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "pypa",
          "product": "virtualenv",
          "versions": [
            {
              "status": "affected",
              "version": ">= 21.14.8, < 21.14.10"
            }
          ]
        }
      ],
      "modified": "2026-10-27T13:37:48.952Z",
      "provider": "cve",
      "references": [
        "https://github.com/pypa/virtualenv/security/advisories/GHSA-4f8h-vr72-p32c",
        "https://github.com/pypa/virtualenv/pull/3437",
        "https://github.com/pypa/virtualenv/commit/b81995c3feab9e1edb453c75ffc6616e1a77335e",
        "https://github.com/pypa/virtualenv/releases/tag/21.14.10"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-113713",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-27T13:37:40.542593Z"
                  }
                }
              }
            ],
            "references": [
              {
                "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-4f8h-vr72-p32c",
                "tags": [
                  "exploit"
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-27T13:37:48.952Z"
            }
          }
        ],
        "cna": {
          "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-20T19:06:25.880Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-113713",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 392599,
  "published_at": "2026-10-20T19:06:25.88+00:00"
}