---
id: CVE-2026-105743
title: >-
  Docling simplifies document processing by parsing diverse formats and
  providing integrations with the generative AI ecosystem
summary: >-
  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 h…
severity: medium
cvss: 4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-367
  - CWE-918
vendor: docling
product: docling
affected:
  - 'docling >= 2.91.0, < 2.132.0'
patched:
  - docling 2.132.0
published: '2026-10-05'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T03:16:34.960'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105743'
references:
  - url: >-
      https://github.com/docling-project/docling/commit/5e469137f275ffc443306a30d12a3a45bceb80fb
    label: security-advisories@github.com
  - url: 'https://github.com/docling-project/docling/pull/4420'
    label: security-advisories@github.com
  - url: 'https://github.com/docling-project/docling/releases/tag/v2.132.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/docling-project/docling/security/advisories/GHSA-pc36-qwjq-x68c
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105743'
  - url: 'https://github.com/advisories/GHSA-pc36-qwjq-x68c'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-105743.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-105743'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2546155'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-105743'
  - url: 'https://github.com/docling-project/docling'
  - url: 'https://pypi.org/project/docling-slim'
tags:
  - nvd
  - ghsa
  - pip
  - cve.org
  - csaf
  - vex
  - red-hat
  - osv
epss: 0.00201
epssPercentile: 0.10116
aliases:
  - GHSA-pc36-qwjq-x68c
  - PYSEC-2026-4190
  - PYSEC-2026-4214
ecosystem: pip
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-08T02:28:00.752216Z'
scores:
  nvd: 4
  vendor: 3.7
  ghsa: 4
  cna: 4
  osv: 4
ingestedAt: '2026-10-05T21:34:25.119Z'
---

## Overview

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.

## Affected

- `docling >= 2.91.0, < 2.132.0`

## Remediation

Upgrade past the affected range:

- `docling 2.132.0`

## Package advisory (CVE-2026-105743)

Affected packages:

- `docling >= 2.91.0, < 2.132.0`
- `docling-slim >= 2.92.0, < 2.132.0`

Patched in:

- `docling 2.132.0`
- `docling-slim 2.132.0`

Source: https://github.com/advisories/GHSA-pc36-qwjq-x68c

## Vendor advisories

- **Red Hat VEX** · Low · affected: Lightspeed Core, Red Hat OpenShift AI (RHOAI) · no fix planned: Lightspeed Core, Red Hat OpenShift AI (RHOAI) · updated 2026-10-06 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-105743.json)