CVE-2026-24009
January 22, 2026
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.
Affected Packages
docling-core (CONDA):
Affected version(s) >=2.3.1 <2.48.4Fix Suggestion:
Update to version 2.48.4https://github.com/docling-project/docling-core.git (GITHUB):
Affected version(s) >=v2.21.0 <v2.48.4Fix Suggestion:
Update to version v2.48.4docling-core (PYTHON):
Affected version(s) >=2.21.0 <2.48.4Fix Suggestion:
Update to version 2.48.4Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Deserialization of Untrusted Data
EPSS
Base Score:
0.14
