CVE-2026-105743Docling: SSRF guard bypass in remote resource fetching (DNS rebinding / multi-record resolution; no IP validation in HTML render mode)
Updated under an hour ago ()
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It affects docling-project docling and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 4.0 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
- Weakness (CWE)
- CWE-367, CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
docling-project docling docling_project:docling (from the name) | from 2.91.0, < 2.132.0 | CNA record |
docling-project docling-slim docling_project:docling_slim (from the name) | from 2.91.0, < 2.132.0 | CNA record |
docling docling docling:docling | from 2.91.0 before 2.132.0 | NVD |
References
- https://github.com/docling-project/docling/security/advisories/GHSA-pc36-qwjq-x68cx-refsource-confirm, patch, vendor-advisory
- https://github.com/docling-project/docling/pull/4420x-refsource-misc, issue-tracking, patch
- https://github.com/docling-project/docling/commit/5e469137f275ffc443306a30d12a3a45bceb80fbx-refsource-misc, patch
- https://github.com/docling-project/docling/releases/tag/v2.132.0x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.