CVE-2026-83615 (GCVE-0-2026-83615)

Vulnerability from cvelistv5 – Published: 2026-09-01 14:44 – Updated: 2026-09-01 14:44
VLAI
Title
xmldom: Quadratic-memory consumption
Summary
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 versions 0.1.5 through 0.6.0, appendElement in lib/sax.js uses _copy to clone the complete currentNSMap for each nested element that declares a new namespace prefix. Keeping every ancestor map live on the parse stack creates quadratic peak namespace-map storage, so a small highly compressible XML document can exhaust the process heap 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.
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Impacted products
Vendor Product Version CPE status
xmldom xmldom Affected: >= 0.1.5, <= 0.6.0
guessed Create a notification for this product.
@xmldom xmldom Affected: >= 0.7.0, < 0.8.15
Affected: >= 0.9.0, < 0.9.12
guessed Create a notification for this product.
Show details on NVD website

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      ],
      "metrics": [
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            "subConfidentialityImpact": "NONE",
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          "url": "https://github.com/xmldom/xmldom/commit/dabffe884e864eeecb1f515c716f875e1bc47ec1"
        },
        {
          "name": "https://github.com/xmldom/xmldom/releases/tag/0.8.15",
          "tags": [
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          "url": "https://github.com/xmldom/xmldom/releases/tag/0.8.15"
        },
        {
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          "tags": [
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          ],
          "url": "https://github.com/xmldom/xmldom/releases/tag/0.9.12"
        }
      ],
      "source": {
        "advisory": "GHSA-965w-775f-mr7g",
        "discovery": "UNKNOWN"
      },
      "title": "xmldom: Quadratic-memory consumption"
    }
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    "datePublished": "2026-09-01T14:44:05.884Z",
    "dateReserved": "2026-08-31T20:36:25.744Z",
    "dateUpdated": "2026-09-01T14:44:05.884Z",
    "state": "PUBLISHED"
  },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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