CVE-2026-105743: medium-severity vulnerability in docling-project docling
Docling: SSRF guard bypass in remote resource fetching (DNS rebinding / multi-record resolution; no IP validation in HTML render mode)
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.91.0 until 2.132.0, validate_url_safety in docling/backend/utils/image_resource_loader.py validates a hostname with a single IPv4 lookup and then allows the HTTP client to resolve and parse the original URL again, permitting DNS rebinding, mixed public and internal address records, and backslash authority parser disagreement to reach internal services. HTMLBackendOptions(render_page=True) also allows HTTP and HTTPS browser requests without validating their resolved destination. Exploitation requires remote fetching to be enabled, and response content is exposed only when it is decoded as an image or passively rendered in a page screenshot. This issue is fixed in 2.132.0.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Related CVEs — docling-project docling
In the same product, most dangerous first.
CVE-2026-44017HIGHDocling: Unsafe Zip Extraction in EasyOCR Model DownloadEPSS 0.7%CVE-2026-44020HIGHDocling: Unsafe XML Entity Expansion in USPTO Patent BackendEPSS 0.6%CVE-2026-44016HIGHDocling: Unsafe Playwright-based HTML RenderingEPSS 0.6%CVE-2026-47214HIGHDocling: Unsafe URI and Path Handling in HTML BackendEPSS 0.4%CVE-2026-105751MEDIUMDocling: Arbitrary local file read via draw:image xlink:href in the OpenDocument backendEPSS 0.4%CVE-2026-105744HIGHDocling: Arbitrary file read/write (and command execution when shell-escape is enabled) when rendering untrusted TikZ with the opt-in Tectonic engineEPSS 0.3%