Description
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.
Published: 2026-10-05
Score: 4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Mon, 05 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Docling-project
Docling-project docling
Vendors & Products Docling-project
Docling-project docling

Mon, 05 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Docling: SSRF guard bypass in remote resource fetching (DNS rebinding / multi-record resolution; no IP validation in HTML render mode)
Weaknesses CWE-367
CWE-918
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N'}


Subscriptions

Docling-project Docling
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-05T21:23:45.527Z

Reserved: 2026-10-05T19:11:07.946Z

Link: CVE-2026-105743

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-05T22:16:57.030

Modified: 2026-10-06T14:59:48.280

Link: CVE-2026-105743

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-05T21:23:45Z

Links: CVE-2026-105743 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T23:45:18Z

Weaknesses
  • CWE-367

    Time-of-check Time-of-use (TOCTOU) Race Condition

  • CWE-918

    Server-Side Request Forgery (SSRF)