DEBIAN-CVE-2026-83606
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.0-beta.9 until 0.9.11, the processing-instruction production in lib/grammar.js lets the greedy S+ separator and lazy Char*? data group repeatedly repartition a long whitespace tail when the required closing ?> is absent. Both parsePI and parseProcessingInstruction apply the expression to the entire remaining source, causing quadratic backtracking during DOMParser.parseFromString() under default options and allowing a small unauthenticated XML input to stall the Node.js event loop. This issue is fixed in @xmldom/xmldom version 0.9.11.
DEBIAN-CVE-2026-83606
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-2026-83606
node-xmldom
Source reference: /affected/0/package/name
- Affected versions
- 0.8.6-1
Source reference:
/affected/0/versions0.9.10-1Source reference:
/affected/0/versions0.9.10-2Source reference:
/affected/0/versions0.9.11-1Source reference:
/affected/0/versions0.9.12-1Source reference:
/affected/0/versions0.9.5-1Source reference:
/affected/0/versions0.9.6-1Source reference:
/affected/0/versions0.9.8-1Source reference:
/affected/0/versions0.9.8-2Source reference:
/affected/0/versions0.9.9-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
node-xmldom
Source reference: /affected/1/package/name
- Affected versions
- 0.9.10-1
Source reference:
/affected/1/versions0.9.10-2Source reference:
/affected/1/versions0.9.11-1Source reference:
/affected/1/versions0.9.12-1Source reference:
/affected/1/versions0.9.6-1Source reference:
/affected/1/versions0.9.8-1Source reference:
/affected/1/versions0.9.8-2Source reference:
/affected/1/versions0.9.9-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
node-xmldom
Source reference: /affected/2/package/name
- Affected versions
- 0.9.10-1
Source reference:
/affected/2/versions0.9.10-2Source reference:
/affected/2/versions0.9.6-1Source reference:
/affected/2/versions0.9.8-1Source reference:
/affected/2/versions0.9.8-2Source reference:
/affected/2/versions0.9.9-1Source reference:
/affected/2/versions - Fixed versions
- 0.9.11-1
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-xmldom",
"purl": "pkg:deb/debian/node-xmldom?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.8.6-1",
"0.9.10-1",
"0.9.10-2",
"0.9.11-1",
"0.9.12-1",
"0.9.5-1",
"0.9.6-1",
"0.9.8-1",
"0.9.8-2",
"0.9.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83606.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-xmldom",
"purl": "pkg:deb/debian/node-xmldom?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.9.10-1",
"0.9.10-2",
"0.9.11-1",
"0.9.12-1",
"0.9.6-1",
"0.9.8-1",
"0.9.8-2",
"0.9.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83606.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.11-1"
}
]
}
],
"package": {
"name": "node-xmldom",
"purl": "pkg:deb/debian/node-xmldom?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.9.10-1",
"0.9.10-2",
"0.9.6-1",
"0.9.8-1",
"0.9.8-2",
"0.9.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83606.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58224 · Revision 1
- Added to Heist Feed
- Publisher date