CVE-2026-24009
HIGHdocling-core 2.21.0-2.48.4 - Remote Code Execution via PyYAML Deserialization
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2026-24009. PoCs published by BiranPeretz.
AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2026-24009, demonstrating unsafe YAML deserialization in docling-core leading to remote code execution. The PoC includes a malicious YAML file and a reproduction script that confirms code execution during YAML parsing.
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.
Exploits (1)
This repository contains a functional proof-of-concept exploit for CVE-2026-24009, demonstrating unsafe YAML deserialization in docling-core leading to remote code execution. The PoC includes a malicious YAML file and a reproduction script that confirms code execution during YAML parsing.
References (5)
Scores
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H