Critical
Security advisory
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
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"
}