Description
Docling Core (or docling-core) is a library that defines core data types and transformations in the document processing application Docling. A PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in docling-core starting in version 2.21.0 and prior to version 2.48.4, specifically only if the application uses pyyaml prior to version 5.4 and invokes `docling_core.types.doc.DoclingDocument.load_from_yaml()` passing it untrusted YAML data. 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. Users who cannot immediately upgrade docling-core can alternatively ensure that the installed version of PyYAML is 5.4 or greater.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| docling-project | docling-core | >= 2.21.0, < 2.48.4 |
References
- https://github.com/advisories/GHSA-8q59-q68h-6hv4Not Applicable
- https://github.com/docling-project/docling-core/commit/3e8d628eeeae50f0f8f239c8c7fea773d065d80cPatch
- https://github.com/docling-project/docling-core/issues/482Issue Tracking
- https://github.com/docling-project/docling-core/releases/tag/v2.48.4Product, Release Notes
- https://github.com/docling-project/docling-core/security/advisories/GHSA-vqxf-v2gg-x3hcMitigation, Patch, Vendor Advisory
Timeline
- Published
- Jan 22, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed