PYSEC-2026-1313

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:24
VLAI
Details

Impact

A PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in docling-core >=2.21.0, <2.48.4 and, specifically only if the application uses pyyaml < 5.4 and invokes docling_core.types.doc.DoclingDocument.load_from_yaml() passing it untrusted YAML data.

Patches

The vulnerability has been patched in docling-core version 2.48.4. The fix mitigates the issue by switching PyYAML deserialization from yaml.FullLoader to yaml.SafeLoader, ensuring that untrusted data cannot trigger code execution.

Workarounds

Users who cannot immediately upgrade docling-core can alternatively ensure that the installed version of PyYAML is 5.4 or greater, which supposedly patches CVE-2020-14343.

References

  • GitHub Issue: #482
  • Upstream Advisory: CVE-2020-14343
  • Fix Release: v2.48.4
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impacted products
Name purl
docling-core pkg:pypi/docling-core
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "docling-core",
        "purl": "pkg:pypi/docling-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.21.0"
            },
            {
              "fixed": "2.48.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.21.0",
        "2.21.1",
        "2.21.2",
        "2.22.0",
        "2.23.0",
        "2.23.1",
        "2.23.2",
        "2.23.3",
        "2.24.0",
        "2.24.1",
        "2.25.0",
        "2.26.0",
        "2.26.1",
        "2.26.2",
        "2.26.3",
        "2.26.4",
        "2.27.0",
        "2.28.0",
        "2.28.1",
        "2.29.0",
        "2.30.0",
        "2.30.1",
        "2.31.0",
        "2.31.1",
        "2.31.2",
        "2.32.0",
        "2.33.0",
        "2.33.1",
        "2.34.0",
        "2.34.1",
        "2.34.2",
        "2.35.0",
        "2.36.0",
        "2.37.0",
        "2.38.0",
        "2.38.1",
        "2.38.2",
        "2.39.0",
        "2.40.0",
        "2.41.0",
        "2.42.0",
        "2.43.0",
        "2.43.1",
        "2.44.0",
        "2.44.1",
        "2.44.2",
        "2.45.0",
        "2.46.0",
        "2.47.0",
        "2.48.0",
        "2.48.1",
        "2.48.2",
        "2.48.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-24009",
    "GHSA-vqxf-v2gg-x3hc"
  ],
  "details": "### Impact\n\nA PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in `docling-core \u003e=2.21.0, \u003c2.48.4` and, specifically only if the application uses `pyyaml \u003c 5.4` and invokes `docling_core.types.doc.DoclingDocument.load_from_yaml()` passing it untrusted YAML data.\n\n### Patches\n\nThe vulnerability has been patched in `docling-core` version **2.48.4**.\nThe fix mitigates the issue by switching `PyYAML` deserialization from `yaml.FullLoader` to `yaml.SafeLoader`, ensuring that untrusted data cannot trigger code execution.\n\n### Workarounds\n\nUsers who cannot immediately upgrade `docling-core` can alternatively ensure that the installed version of `PyYAML` is **5.4 or greater**, which supposedly patches CVE-2020-14343.\n\n### References\n\n* GitHub Issue: #482\n* Upstream Advisory: CVE-2020-14343\n* Fix Release: [v2.48.4](https://github.com/docling-project/docling-core/releases/tag/v2.48.4)",
  "id": "PYSEC-2026-1313",
  "modified": "2026-07-07T17:24:03.048727Z",
  "published": "2026-07-07T16:03:19.816786Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling-core/security/advisories/GHSA-vqxf-v2gg-x3hc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24009"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling-core/issues/482"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling-core/commit/3e8d628eeeae50f0f8f239c8c7fea773d065d80c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8q59-q68h-6hv4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/docling-project/docling-core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling-core/releases/tag/v2.48.4"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/docling-core"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-vqxf-v2gg-x3hc"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "docling-core vulnerable to Remote Code Execution via unsafe PyYAML usage"
}



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