CVE-2026-105749 (GCVE-0-2026-105749)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:36 – Updated: 2026-10-05 21:36
VLAI
Title
Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS and BoxNote backends causes CPU/memory exhaustion
Summary
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.0.0 until 2.131.0, the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends, including docling/backend/html_backend.py, docling/backend/jats_backend.py, and docling/backend/boxnote_backend.py, accept the rowspan and colspan attribute values without an upper bound and execute loops or allocate a table grid proportional to the declared span. A very small document can therefore cause sustained CPU use or multi-gigabyte memory allocation, and the document_timeout setting does not interrupt the single backend conversion call. Export through the TableData.grid property can further materialize the oversized grid. This issue is fixed in 2.131.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
Vendor Product Version CPE status
docling-project docling Affected: >= 2.0.0, < 2.131.0
guessed Create a notification for this product.
docling-project docling-slim Affected: >= 2.92.0, < 2.131.0
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "docling",
          "vendor": "docling-project",
          "versions": [
            {
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              "version": "\u003e= 2.0.0, \u003c 2.131.0"
            }
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        },
        {
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            {
              "status": "affected",
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        }
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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      "providerMetadata": {
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          "tags": [
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        {
          "name": "https://github.com/docling-project/docling/commit/c5b4429cc6500a344c13edeb22e67610c2159b09",
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      "source": {
        "advisory": "GHSA-cgc7-9qp3-86m3",
        "discovery": "UNKNOWN"
      },
      "title": "Docling: Unbounded table rowspan/colspan in HTML, JATS, ODS and BoxNote backends causes CPU/memory exhaustion"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-10-05T21:36:53.431Z",
    "dateReserved": "2026-10-05T19:11:07.947Z",
    "dateUpdated": "2026-10-05T21:36:53.431Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-06",
      "epss": "0.00256",
      "percentile": "0.15676"
    },
    "nvd": {
      "cve": {
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                  }
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        "cveTags": [],
        "descriptions": [
          {
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            "value": "Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.0.0 until 2.131.0, the HTML, JATS, OpenDocument spreadsheet, and BoxNote backends, including docling/backend/html_backend.py, docling/backend/jats_backend.py, and docling/backend/boxnote_backend.py, accept the rowspan and colspan attribute values without an upper bound and execute loops or allocate a table grid proportional to the declared span. A very small document can therefore cause sustained CPU use or multi-gigabyte memory allocation, and the document_timeout setting does not interrupt the single backend conversion call. Export through the TableData.grid property can further materialize the oversized grid. This issue is fixed in 2.131.0."
          }
        ],
        "id": "CVE-2026-105749",
        "lastModified": "2026-10-06T14:59:48.280",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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        "published": "2026-10-05T22:16:57.943",
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          },
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            "url": "https://github.com/docling-project/docling/security/advisories/GHSA-cgc7-9qp3-86m3"
          }
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        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Undergoing Analysis",
        "weaknesses": [
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-06T00:10:41+00:00",
      "cve": "CVE-2026-105749",
      "id": "CVE-2026-105749",
      "initial_release_date": "2026-10-05T21:36:53.431000+00:00",
      "product_status:known_affected": "7",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "docling: docling: Denial of Service via unbounded table span attributes",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-105749.json",
      "version": "3"
    }
  }
}



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