Docling Core defines core data types and transformations for the document processing application Docling. In versions 1.5.0 and above, prior to 2.74.1, docling-core did not sufficiently restrict remote request destinations and could resolve a server-provided Content-Disposition to a local path in an unsafe manner. In applications that accept untrusted URLs, this could allow SSRF attacks targeting local files outside the user-defined cache directory. This issue has been fixed in version 2.74.1.

Docling Core defines core data types and transformations for the document processing application Docling. In versions 2.5.0 and above, prior to 2.74.1, docling-core could allow local file:// image references and accepted inline data: content without a decoded-size limit. In applications that accept untrusted image references, this may allow access to local files readable by the process or excessive memory use from large inline payloads. This issue has been fixed in version 2.74.1.

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.