nodejs — security advisory
Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case "javascript:" (e.g. "javAscript:") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.
- Products
- nodejs
- Affected versions
- Not specified
- Fixed versions
- 10.15.0~dfsg-6
- CVEs
- CVE-2018-12123
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 11:08 UTC · Revision 1
Source evidence
Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case "javascript:" (e.g. "javAscript:") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.
osv:DEBIAN-CVE-2018-12123
nodejs
Fixed versions: 10.15.0~dfsg-6
nodejs
Fixed versions: 10.15.0~dfsg-6
nodejs
Fixed versions: 10.15.0~dfsg-6
Complete source record
{
"id": "9eb928359caf57ae5c31e24d82f951bcb8f9f15094ba0bbb4347fda9a2156b08",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-12123",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-12123",
"summary": "Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case \"javascript:\" (e.g. \"javAscript:\") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.",
"evidence": "osv:DEBIAN-CVE-2018-12123",
"products": [
{
"name": {
"value": "nodejs",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.15.0~dfsg-6",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nodejs",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.15.0~dfsg-6",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nodejs",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.15.0~dfsg-6",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2018-12123",
"aliases": [
"DEBIAN-CVE-2018-12123"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.15.0~dfsg-6"
}
]
}
],
"package": {
"name": "nodejs",
"purl": "pkg:deb/debian/nodejs?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12123.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.15.0~dfsg-6"
}
]
}
],
"package": {
"name": "nodejs",
"purl": "pkg:deb/debian/nodejs?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12123.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.15.0~dfsg-6"
}
]
}
],
"package": {
"name": "nodejs",
"purl": "pkg:deb/debian/nodejs?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12123.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-09T09:47:30.158169581Z",
"provider": "osv",
"upstream": [
"CVE-2018-12123"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-12123"
]
},
"related_cves": [
{
"value": "CVE-2018-12123",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 111588,
"published_at": "2018-11-28T17:29:00.417+00:00"
}