CVE-2026-55642 — dbx is a cross-platform database client for databases.¶
Key facts
CVE-2026-55642 is a Critical (9.8) vulnerability: dbx is a cross-platform database client for databases.. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-55642 |
| Severity | Critical (9.8) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-55642/ |
Details¶
English | 한국어
Description¶
dbx is a cross-platform database client for databases. Prior to 0.5.51, dbx-web auth_middleware in crates/dbx-web/src/auth.rs passes every protected request to the handler chain when password_hash is None. A fresh deployment reaches that state when DBX_PASSWORD is unset and no stored password exists, while crates/dbx-web/src/main.rs binds the service to 0.0.0.0 on port 4224 by default. An unauthenticated network attacker can call the /api/connection/connect and /api/query/execute routes to use configured database credentials and execute arbitrary SQL, allowing disclosure, modification, or destruction of data in connected databases. The desktop Tauri application is not affected because it binds only to loopback. This issue is fixed in version 0.5.51.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-55642 |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-55642/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-2026-55642
# 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/t8y2/dbx/commit/fb919efe0a62869631f49242d1f4fe8d41718c2a
- https://github.com/t8y2/dbx/issues/2887
- https://github.com/t8y2/dbx/releases/tag/v0.5.51
- https://github.com/t8y2/dbx/security/advisories/GHSA-rqp4-8fxh-22vh
- https://github.com/t8y2/dbx/security/advisories/GHSA-rqp4-8fxh-22vh
Generated by PoC Generator on 2026-08-23T02:04:46.621788699
Frequently asked questions¶
What is CVE-2026-55642?¶
CVE-2026-55642 is a Critical (9.8) vulnerability: dbx is a cross-platform database client for databases.. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-55642?¶
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-2026-55642?¶
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.