vm2: Sandbox Breakout Using Dangerous Host Proto Mutators

{
  "id": "896273b6f19ac35cb6a19687f559f1319a38aaf1a9f18b5dadab43cf6389c74a",
  "url": "https://osv.dev/vulnerability/CVE-2026-47698",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vm2: Sandbox Breakout Using Dangerous Host Proto Mutators",
    "summary": "vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.",
    "evidence": "osv:CVE-2026-47698",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-47698",
      "aliases": [
        "CVE-2026-47698",
        "GHSA-cfcw-xp6x-25gj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/patriksimek/vm2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a5b31cd9c01b37139aa9c71df1c691a6d1b440f9"
                },
                {
                  "fixed": "a85acb61f81402c6eabf32760aa11272af6d0f9e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.11.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a85acb61f81402c6eabf32760aa11272af6d0f9e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a5b31cd9c01b37139aa9c71df1c691a6d1b440f9"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "3.11.6"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.11.5",
            "v3.11.4",
            "v3.11.3",
            "v3.11.2",
            "v3.11.1",
            "v3.11.0",
            "v3.10.5",
            "v3.10.4",
            "v3.10.3",
            "v3.10.2",
            "v3.10.1",
            "v3.10.0",
            "3.9.19",
            "3.9.18",
            "3.9.17",
            "3.9.16",
            "3.9.15",
            "3.9.14",
            "3.9.13",
            "3.9.12",
            "3.9.11",
            "3.9.10",
            "3.9.9",
            "3.9.8",
            "3.9.7",
            "3.9.6",
            "3.9.5",
            "3.9.4",
            "3.9.3",
            "v3.9.2",
            "v3.9.1",
            "v3.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47698.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.042046874Z",
      "provider": "osv",
      "references": [
        "https://github.com/patriksimek/vm2/releases/tag/3.11.6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47698.json",
        "https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-47698",
        "https://github.com/patriksimek/vm2/commit/a85acb61f81402c6eabf32760aa11272af6d0f9e"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-913"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47698.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-47698",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500215,
  "published_at": "2026-08-17T20:53:09.218+00:00"
}