DEBIAN-CVE-2026-41238
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions 3.0.1 through 3.3.3 are vulnerable to a prototype pollution-based XSS bypass. When an application uses `DOMPurify.sanitize()` with the default configuration (no `CUSTOM_ELEMENT_HANDLING` option), a prior prototype pollution gadget can inject permissive `tagNameCheck` and `attributeNameCheck` regex values into `Object.prototype`, causing DOMPurify to allow arbitrary custom elements with arbitrary attributes — including event handlers — through sanitization. Version 3.4.0 fixes the issue.
DEBIAN-CVE-2026-41238
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-41238
node-dompurify
Source reference: /affected/0/package/name
- Affected versions
- 2.4.1+dfsg+~2.4.0-1
Source reference:
/affected/0/versions2.4.1+dfsg+~2.4.0-2Source reference:
/affected/0/versions2.4.1+dfsg+~2.4.0-2+deb12u1Source reference:
/affected/0/versions3.0.9+dfsg+~3.0.5-1Source reference:
/affected/0/versions3.1.6+dfsg+~3.0.5-1Source reference:
/affected/0/versions3.1.7+dfsg+~3.0.5-1Source reference:
/affected/0/versions3.1.7+dfsg+~3.0.5-2Source reference:
/affected/0/versions3.2.5+dfsg-1Source reference:
/affected/0/versions3.3.2+dfsg-1Source reference:
/affected/0/versions3.3.3+dfsg-1Source reference:
/affected/0/versions3.3.3+dfsg-2Source reference:
/affected/0/versions3.4.1+dfsg-1Source reference:
/affected/0/versions3.4.12+dfsg-1Source reference:
/affected/0/versions3.4.13+dfsg-1Source reference:
/affected/0/versions3.4.13+dfsg-2Source reference:
/affected/0/versions3.4.16+dfsg-1Source reference:
/affected/0/versions3.4.2+dfsg-1Source reference:
/affected/0/versions3.4.5+dfsg-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
node-dompurify
Source reference: /affected/1/package/name
- Affected versions
- 3.1.7+dfsg+~3.0.5-2
Source reference:
/affected/1/versions3.2.5+dfsg-1Source reference:
/affected/1/versions3.3.2+dfsg-1Source reference:
/affected/1/versions3.3.3+dfsg-1Source reference:
/affected/1/versions3.3.3+dfsg-2Source reference:
/affected/1/versions3.4.1+dfsg-1Source reference:
/affected/1/versions3.4.12+dfsg-1Source reference:
/affected/1/versions3.4.13+dfsg-1Source reference:
/affected/1/versions3.4.13+dfsg-2Source reference:
/affected/1/versions3.4.16+dfsg-1Source reference:
/affected/1/versions3.4.2+dfsg-1Source reference:
/affected/1/versions3.4.5+dfsg-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
node-dompurify
Source reference: /affected/2/package/name
- Affected versions
- 3.1.7+dfsg+~3.0.5-2
Source reference:
/affected/2/versions3.2.5+dfsg-1Source reference:
/affected/2/versions3.3.2+dfsg-1Source reference:
/affected/2/versions3.3.3+dfsg-1Source reference:
/affected/2/versions3.3.3+dfsg-2Source reference:
/affected/2/versions - Fixed versions
- 3.4.1+dfsg-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/debian/node-dompurify?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.4.1+dfsg+~2.4.0-1",
"2.4.1+dfsg+~2.4.0-2",
"2.4.1+dfsg+~2.4.0-2+deb12u1",
"3.0.9+dfsg+~3.0.5-1",
"3.1.6+dfsg+~3.0.5-1",
"3.1.7+dfsg+~3.0.5-1",
"3.1.7+dfsg+~3.0.5-2",
"3.2.5+dfsg-1",
"3.3.2+dfsg-1",
"3.3.3+dfsg-1",
"3.3.3+dfsg-2",
"3.4.1+dfsg-1",
"3.4.12+dfsg-1",
"3.4.13+dfsg-1",
"3.4.13+dfsg-2",
"3.4.16+dfsg-1",
"3.4.2+dfsg-1",
"3.4.5+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41238.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/debian/node-dompurify?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.1.7+dfsg+~3.0.5-2",
"3.2.5+dfsg-1",
"3.3.2+dfsg-1",
"3.3.3+dfsg-1",
"3.3.3+dfsg-2",
"3.4.1+dfsg-1",
"3.4.12+dfsg-1",
"3.4.13+dfsg-1",
"3.4.13+dfsg-2",
"3.4.16+dfsg-1",
"3.4.2+dfsg-1",
"3.4.5+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41238.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1+dfsg-1"
}
]
}
],
"package": {
"name": "node-dompurify",
"purl": "pkg:deb/debian/node-dompurify?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.1.7+dfsg+~3.0.5-2",
"3.2.5+dfsg-1",
"3.3.2+dfsg-1",
"3.3.3+dfsg-1",
"3.3.3+dfsg-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41238.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56897 · Revision 1
- Added to Heist Feed
- Publisher date