CVE-2026-105748 Docling: Crafted DoclingDocument JSON embeds local image files into converted output
Attackers can read local image files by crafting JSON inputs with local paths, exposing sensitive data when embedded image mode is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-105748?
CVE-2026-105748 is a medium-severity path traversal vulnerability in docling-project docling, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.16.0 until 2.131.0, the InputFormat.JSON_DOCLING backend in docling/backend/json/docling_json_backend.py validates serialized DoclingDocument input without rejecting picture image references that contain local paths or file URIs. When the document is enriched or exported with ImageRefMode.EMBEDDED, the DoclingDocument._with_embedded_pictures and ImageRef.pil_image methods can open those references and place readable image bytes in Markdown or HTML output. Disclosure is limited to files Pillow can decode as images, while differing decode behavior can also reveal whether a path exists. Direct untrusted loading through docling-core is outside this Docling fix. This issue is fixed in 2.131.0.
Which versions are affected by CVE-2026-105748?
6 open source packages ship an affected version, including docling and docling-slim. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
docling PyPI | From 2.16.0 | 2.131.0 |
docling PyPI | From 2.16.0 | 2.131.0 |
docling PyPI | From 2.16.0 | 2.131.0 |
docling-slim PyPI | From 2.92.0 | 2.131.0 |
docling-slim PyPI | From 2.92.0 | 2.131.0 |
docling-slim PyPI | From 2.92.0 | 2.131.0 |
Products include Docling Docling.
How do I fix CVE-2026-105748?
Upgrade docling to 2.131.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-105748 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105748 exists.
Other vulnerabilities in docling-project docling
- CVE-2026-44016 Docling: Unsafe Playwright-based HTML Rendering
- CVE-2026-105744 Docling has arbitrary file read/write (and command execution when shell-escape is enabled) when rendering untrusted TikZ with the opt-in Tectonic engine
- CVE-2026-44017 Docling: Unsafe Zip Extraction in EasyOCR Model Download
- CVE-2026-44020 Docling: Unsafe XML Entity Expansion in USPTO Patent Backend
- CVE-2026-47214 Docling: Unsafe URI and Path Handling in HTML Backend
Sources
Also known as GHSA-p944-4xh2-x776, PYSEC-2026-4208, PYSEC-2026-4213.