Skip to content
Heist/ feed
Back to feed
Medium

vm2: Host File Path Disclosure via Stack Trace Information Leak

Type: advisorySources: OSV

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-44002
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 09:32 UTC · Revision 1

Source evidence

vm2: Host File Path Disclosure via Stack Trace Information Leak

core-osv · Original source

Published 13 May 2026, 17:29 UTC

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.

osv:CVE-2026-44002
Complete source record
{
  "id": "dda91f42faf04ef234fb35932c63e47cfdd13a9e45c8d89368162fef6e1598cb",
  "url": "https://osv.dev/vulnerability/CVE-2026-44002",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vm2: Host File Path Disclosure via Stack Trace Information Leak",
    "summary": "vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.",
    "evidence": "osv:CVE-2026-44002",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-44002",
      "aliases": [
        "CVE-2026-44002",
        "GHSA-v27g-jcqj-v8rw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/patriksimek/vm2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "fca270df73b64a88e2f9ce71ac17663b6eaf814e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.11.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.11.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "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-2026-44002.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.530722887Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44002.json",
        "https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-44002"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-209"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44002.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-44002",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518890,
  "published_at": "2026-05-13T17:29:42.416+00:00"
}