CVE-2026-44019 — Docling Core defines core data types and transformations for the document processing…¶

Key facts

CVE-2026-44019 is a High (8.1) vulnerability: Docling Core defines core data types and transformations for the document processing…. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-44019
Severity	High (8.1)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-44019/

Details¶

English | 한국어

Description¶

Docling Core defines core data types and transformations for the document processing application Docling. In versions 2.5.0 and above, prior to 2.74.1, docling-core could allow local file:// image references and accepted inline data: content without a decoded-size limit. In applications that accept untrusted image references, this may allow access to local files readable by the process or excessive memory use from large inline payloads. This issue has been fixed in version 2.74.1.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-44019
CVSS Score	8.1

Proof of Concept¶

Download¶

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-44019/poc.py

Usage¶

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab¶

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start¶

# Clone and navigate to CVE directory
cd CVE-2026-44019

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints¶

Application	URL	Status
Vulnerable App	http://localhost:8080	Shows vulnerability
Patched App	http://localhost:8081	Demonstrates fix

Directory Structure¶

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References¶

https://github.com/docling-project/docling-core/releases/tag/v2.74.1
https://github.com/docling-project/docling-core/security/advisories/GHSA-j5xp-7m2f-49jv

Generated by PoC Generator on 2026-07-17T07:09:35.707596726

Frequently asked questions¶

What is CVE-2026-44019?¶

CVE-2026-44019 is a High (8.1) vulnerability: Docling Core defines core data types and transformations for the document processing…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-44019?¶

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2026-44019?¶

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

For authorized security testing and research only. See the full source and NVD record.