Medium
node-dompurify — security advisory
DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.
- Products
- node-dompurify
- Affected versions
- 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-2026-75838
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:17 UTC · Revision 1
Source evidence
DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.
osv:UBUNTU-CVE-2026-75838
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": "9aae9e49b49cca48eb1bb809fd1351d46e99a6ef14563a3c0262a2c3f92cd48d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-75838",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-75838",
"summary": "DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.",
"evidence": "osv:UBUNTU-CVE-2026-75838",
"products": [
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.0+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.3.3+dfsg-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1+dfsg+~2.4.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.0.9+dfsg+~3.0.5-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.3.3+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.2+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.5+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.12+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.13+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.13+dfsg-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "node-dompurify",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.7+dfsg+~3.0.5-2",
"evidence": "/affected/3/versions"
},
{
"value": "3.3.3+dfsg-1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-75838",
"aliases": [
"UBUNTU-CVE-2026-75838"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"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-2026-75838.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-2026-75838.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-2026-75838.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-2026-75838.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "node-dompurify",
"binary_version": "3.3.3+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T13:01:05.822159549Z",
"provider": "osv",
"upstream": [
"CVE-2026-75838"
],
"references": [
"https://ubuntu.com/security/CVE-2026-75838",
"https://www.cve.org/CVERecord?id=CVE-2026-75838"
]
},
"related_cves": [
{
"value": "CVE-2026-75838",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360964,
"published_at": "2026-08-18T12:19:00+00:00"
}