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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-3752

The utilities function in all versions <= 1.0.0 of the merge-options node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-3752
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 07:06 UTC · Revision 1

Source evidence

CVE-2018-3752

core-osv · Original source

Published 3 Jul 2018, 21:29 UTC

The utilities function in all versions <= 1.0.0 of the merge-options node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.

osv:CVE-2018-3752
Complete source record
{
  "id": "695c5b92e8dd715f4569db5fb7d7011e6f09642352f2e771b1e824b8f55470a6",
  "url": "https://osv.dev/vulnerability/CVE-2018-3752",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-3752",
    "summary": "The utilities function in all versions <= 1.0.0 of the merge-options node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.",
    "evidence": "osv:CVE-2018-3752",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-3752",
      "aliases": [
        "CVE-2018-3752",
        "GHSA-qw93-45r3-p66p"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/schnittstabil/merge-options",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "d562042c9195160731f9ad77bd122f8a3991caa4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:merge-options_project:merge-options:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.0",
            "v0.0.64"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-3752.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:48.716291840Z",
      "provider": "osv",
      "references": [
        "https://hackerone.com/reports/311336"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-3752",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436826,
  "published_at": "2018-07-03T21:29:00.7+00:00"
}