High
dompurify.js, node-dompurify — security advisory
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside is returned. This issue is fixed in version 3.4.5.
- Products
- dompurify.js, node-dompurify
- Affected versions
- 0.7.3~dfsg1-1, 0.7.3~dfsg1-2, 0.9.0~dfsg1-1, 0.9.0~dfsg1-2, 2.3.0+dfsg-2, 2.3.3+dfsg-1, 2.4.1+dfsg+~2.4.0-1, 3.0.9+dfsg+~3.0.5-1, 3.1.7+dfsg+~3.0.5-2, 3.3.3+dfsg-1, 3.4.12+dfsg-1, 3.4.13+dfsg-1, 3.4.13+dfsg-2, 3.4.2+dfsg-1, 3.4.5+dfsg-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-47423
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:05 UTC · Revision 1
Source evidence
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside is returned. This issue is fixed in version 3.4.5.
osv:UBUNTU-CVE-2026-47423
dompurify.js
Fixed versions: Not specified
dompurify.js
Fixed versions: Not specified
node-dompurify
Fixed versions: Not specified
node-dompurify
Fixed versions: Not specified
node-dompurify
Fixed versions: Not specified
node-dompurify
Fixed versions: Not specified
Complete source record
{
"id": "57eb5de92910365503fad1122cddfa3ba7613b8b2d81d23147d003e0b9c359b7",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-47423",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-47423",
"summary": "DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside is returned. This issue is fixed in version 3.4.5.",
"evidence": "osv:UBUNTU-CVE-2026-47423",
"products": [
{
"name": {
"value": "dompurify.js",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.3~dfsg1-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.7.3~dfsg1-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "dompurify.js",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.0~dfsg1-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.9.0~dfsg1-2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.0+dfsg-2",
"evidence": "/affected/2/versions"
},
{
"value": "2.3.3+dfsg-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1+dfsg+~2.4.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.9+dfsg+~3.0.5-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.3.3+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.4.2+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.4.5+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.4.12+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.4.13+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.4.13+dfsg-2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.7+dfsg+~3.0.5-2",
"evidence": "/affected/5/versions"
},
{
"value": "3.3.3+dfsg-1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-47423",
"aliases": [
"UBUNTU-CVE-2026-47423"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dompurify.js",
"purl": "pkg:deb/ubuntu/dompurify.js?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.7.3~dfsg1-1",
"0.7.3~dfsg1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-dompurify",
"binary_version": "0.7.3~dfsg1-2"
},
{
"binary_name": "node-dompurify",
"binary_version": "0.7.3~dfsg1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dompurify.js",
"purl": "pkg:deb/ubuntu/dompurify.js?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"0.9.0~dfsg1-1",
"0.9.0~dfsg1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-dompurify",
"binary_version": "0.9.0~dfsg1-2"
},
{
"binary_name": "node-dompurify",
"binary_version": "0.9.0~dfsg1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/ubuntu/node-dompurify?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"2.3.0+dfsg-2",
"2.3.3+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "node-dompurify",
"binary_version": "2.3.3+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/ubuntu/node-dompurify?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"2.4.1+dfsg+~2.4.0-1",
"3.0.9+dfsg+~3.0.5-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "node-dompurify",
"binary_version": "3.0.9+dfsg+~3.0.5-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/ubuntu/node-dompurify?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"3.3.3+dfsg-1",
"3.4.2+dfsg-1",
"3.4.5+dfsg-1",
"3.4.12+dfsg-1",
"3.4.13+dfsg-1",
"3.4.13+dfsg-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "node-dompurify",
"binary_version": "3.4.13+dfsg-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/ubuntu/node-dompurify?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"3.1.7+dfsg+~3.0.5-2",
"3.3.3+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47423.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "node-dompurify",
"binary_version": "3.3.3+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:15.619422511Z",
"provider": "osv",
"upstream": [
"CVE-2026-47423"
],
"references": [
"https://ubuntu.com/security/CVE-2026-47423",
"https://www.cve.org/CVERecord?id=CVE-2026-47423",
"https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea",
"https://github.com/cure53/DOMPurify/releases/tag/3.4.5",
"https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx"
]
},
"related_cves": [
{
"value": "CVE-2026-47423",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360409,
"published_at": "2026-07-14T20:17:00+00:00"
}