docling-core vulnerable to Remote Code Execution via unsafe PyYAML usage
Impact
A PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in docling-core >=2.21.0, <2.48.4 and, specifically only if the application uses pyyaml < 5.4 and invokes docling_core.types.doc.DoclingDocument.load_from_yaml() passing it untrusted YAML data.
Patches
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.
Workarounds
Users who cannot immediately upgrade docling-core can alternatively ensure that the installed version of PyYAML is 5.4 or greater, which supposedly patches CVE-2020-14343.
References
- GitHub Issue: #482
- Upstream Advisory: CVE-2020-14343
- Fix Release: v2.48.4
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | docling-core | >= 2.21.0, < 2.48.4 | 2.48.4 |
References
- https://github.com/docling-project/docling-core/security/advisories/GHSA-vqxf-v2gg-x3hc
- https://nvd.nist.gov/vuln/detail/CVE-2026-24009
- https://github.com/docling-project/docling-core/issues/482
- https://github.com/docling-project/docling-core/commit/3e8d628eeeae50f0f8f239c8c7fea773d065d80c
- https://github.com/advisories/GHSA-8q59-q68h-6hv4
- https://github.com/docling-project/docling-core
- https://github.com/docling-project/docling-core/releases/tag/v2.48.4
- https://pypi.org/project/docling-core
- https://github.com/advisories/GHSA-vqxf-v2gg-x3hc
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Python (PyPI)
- Package
docling-core- Disclosed
- 22.01.2026
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1313 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-vqxf-v2gg-x3hc - CC BY 4.0
Vulnerability history: docling-core
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 01.2026 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
Disclosures per year
- 2026: 3
-
docling-core vulnerable to Remote Code Execution via unsafe PyYAML usage this entry
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