CVE-2026-72735 — Dokploy is a free, self-hostable Platform as a Service (PaaS).¶

Key facts

CVE-2026-72735 is a Critical (9.9) vulnerability: Dokploy is a free, self-hostable Platform as a Service (PaaS).. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-72735
Severity	Critical (9.9)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-72735/

Details¶

English | 한국어

Description¶

Dokploy is a free, self-hostable Platform as a Service (PaaS). Prior to 0.29.13, writeTraefikConfigRemote in packages/server/src/utils/traefik/application.ts serializes user-controlled Traefik configuration with yaml.stringify and interpolates the resulting yamlStr into an echo command executed through execAsyncRemote. Single quotes in redirect regex and replacement fields, basic authentication usernames, domain host values, or middleware configuration can terminate the shell quoting and execute arbitrary commands on managed remote servers with the configured SSH user's privileges. This vulnerability is caused by an incomplete fix for CVE-2026-45630. This issue is fixed in version 0.29.13.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-72735
Type	COMMAND_INJECTION
CVSS Score	9.9

Proof of Concept¶

Download¶

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-72735/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-2026-72735

# 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/Dokploy/dokploy/commit/92310ddb143c8e67ca95eb7db661838a76579f2e
https://github.com/Dokploy/dokploy/releases/tag/v0.29.13
https://github.com/Dokploy/dokploy/security/advisories/GHSA-478p-cx3j-hghc
https://github.com/Dokploy/dokploy/security/advisories/GHSA-478p-cx3j-hghc

Generated by PoC Generator on 2026-08-11T15:57:42.270864514

Frequently asked questions¶

What is CVE-2026-72735?¶

CVE-2026-72735 is a Critical (9.9) vulnerability: Dokploy is a free, self-hostable Platform as a Service (PaaS).. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-72735?¶

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-2026-72735?¶

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.