CVE-2026-73519 — WolfStack before 25.9.2 contains a hard-coded cluster-authentication secret compiled into…¶
Key facts
CVE-2026-73519 is a Critical (9.8) vulnerability: WolfStack before 25.9.2 contains a hard-coded cluster-authentication secret compiled into…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-73519 |
| Severity | Critical (9.8) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-73519/ |
Details¶
English | 한국어
Description¶
WolfStack before 25.9.2 contains a hard-coded cluster-authentication secret compiled into every build and published as a constant in src/auth/mod.rs, allowing remote unauthenticated attackers to bypass authentication by supplying this value in the X-WolfStack-Secret header to the require_auth() gate without any session, API key, or user account. Attackers can reach an affected node's management port to enumerate all Docker and LXC containers on the host and execute arbitrary commands as root inside any container via the POST /api/containers/{runtime}/{id}/exec endpoint.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-73519 |
| Type | XSS |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-73519/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-2026-73519
# 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/wolfsoftwaresystemsltd/WolfStack/releases?page=7#release-v25.9.2
- https://github.com/wolfsoftwaresystemsltd/WolfStack/security/advisories/GHSA-r3mw-2wmq-j6jg
- https://www.vulncheck.com/advisories/wolfstack-hard-coded-secret-authentication-bypass-via-x-wolfstack-secret
Generated by PoC Generator on 2026-08-13T13:28:20.495688144
Frequently asked questions¶
What is CVE-2026-73519?¶
CVE-2026-73519 is a Critical (9.8) vulnerability: WolfStack before 25.9.2 contains a hard-coded cluster-authentication secret compiled into…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-73519?¶
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-2026-73519?¶
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.