CVE-2026-15704 — In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled…¶
Key facts
CVE-2026-15704 is a Critical (9.8) vulnerability: In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-15704 |
| Severity | Critical (9.8) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-15704/ |
Details¶
English | 한국어
Description¶
In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled deployments are vulnerable to an authorization bypass caused by inconsistent trailing-slash handling between the ABAC middleware and the HTTP router.
The shared router configuration used Chi's middleware.StripSlashes, so a request such as GET /shells/ was dispatched to the registered GET /shells route. However, the ABAC middleware evaluated the original request path including the trailing slash. If ABAC route lookup did not find a matching slash-suffixed route, the request was passed onward and the router then stripped the slash and executed the protected handler without the intended ABAC authorization decision and without the expected ABAC query filters.
An unauthenticated or unauthorized network attacker could append a trailing slash to protected API routes to reach handlers that should have been denied by ABAC policy. Depending on the exposed component, HTTP method, and deployed policy, this could allow unauthorized read, create, update, delete, or upload operations.
The issue affects ABAC-enabled deployments of services that use the shared router and ABAC middleware, including AAS Repository, Submodel Repository, AAS Registry, Submodel Registry, Concept Description Repository, Discovery, AAS Environment upload, and related services. The issue is fixed in Eclipse BaSyx Go Components v1.0.1.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-15704 |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-15704/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-2026-15704
# 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/eclipse-basyx/basyx-go-components/pull/442
- https://github.com/eclipse-basyx/basyx-go-components/releases/tag/v1.0.1
- https://gitlab.eclipse.org/security/cve-assignment/-/work_items/164
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/580
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/580
Generated by PoC Generator on 2026-08-04T13:58:03.36117112
Frequently asked questions¶
What is CVE-2026-15704?¶
CVE-2026-15704 is a Critical (9.8) vulnerability: In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-15704?¶
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-2026-15704?¶
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.