CVE-2026-24009
Docling Core vulnerable to Remote Code Execution via unsafe PyYAML usage
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
- docling-project · docling-core
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 GITHUB
- 8.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 1.53% chance of exploitation in the next 30 days, 74th percentile
- Published
- 2026-01-22
Proof-of-concept exploits (1)
- BiranPeretz/docling-core-CVE-2026-240090★ · 2026-02-26
Security advisories
- docling-project/docling-core/security/advisories/GHSA-vqxf-v2gg-x3hc
- advisories/GHSA-vqxf-v2gg-x3hc
- docling-project/docling-core/issues/482