Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N N N N H 8.7 .0060 47.0 —
AFFECTED Product Versions Fixed xmldom <= 0.6.0 – — xmldom >= 0.9.0, < 0.9.12 – —
TIMELINE Aug 31 Reserved by GitHub_M Sep 1 Published (CNA: GitHub_M) Sep 3 EXPLOIT PUBLISHED — CVE-2026-83613 (xmldom). Public exploit reference added.
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMHandler.startElement in lib/dom-parser.js inserts every parsed attribute through setAttributeNode, while NamedNodeMap.setNamedItem in lib/dom.js calls the linear getNamedItem or getNamedItemNS lookup for each insertion. A well-formed element with many distinct attributes therefore requires quadratic comparisons during DOMParser.parseFromString() and can stall a Node.js event loop before application validation. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.
| Date | Event | Detail |
|---|---|---|
| August 31, 2026 | Reserved | Reserved by GitHub_M |
| September 1, 2026 | Published | Published (CNA: GitHub_M) |
| September 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-83613 (xmldom). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| xmldom | xmldom | — | <= 0.6.0 | — |
| @xmldom | xmldom | — | >= 0.9.0, < 0.9.12 | — |
Authoritative record: CVE-2026-83613 at cve.org
Vendors: xmldom · @xmldom
Weaknesses: CWE-407
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-83613 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
