CVE-2026-53983 — Ground Station prior to 0.6.0 contains an unauthenticated blind server-side request…¶
Key facts
CVE-2026-53983 is a High (8.6) vulnerability: Ground Station prior to 0.6.0 contains an unauthenticated blind server-side request…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-53983 |
| Severity | High (8.6) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-53983/ |
Details¶
English | 한국어
Description¶
Ground Station prior to 0.6.0 contains an unauthenticated blind server-side request forgery vulnerability in the orbital-source configuration path that allows any unauthenticated Socket.IO client to cause the ground-station process to issue outbound HTTP requests to attacker-chosen destinations. Attackers can connect to the Socket.IO server on port 7000 without credentials due to disabled authentication enforcement and a wildcard CORS policy, then submit a data_submission event with submit-orbital-sources action to persist an attacker-supplied URL in the database, then trigger an orbital sync via the equally unauthenticated background_task:start event. The URL is stored with no scheme allowlist, no host validation, and no rejection of loopback, RFC1918, or link-local (cloud instance metadata at 169.254.169.254) addresses, and is passed directly to requests.get in _fetch_http_3le and _fetch_http_omm in backend/tlesync/source_adapters.py. HTTP status codes and error messages from the outbound request are emitted in the orbital_sync_state Socket.IO event to all connected clients, providing a serviceable oracle for interpreting internal-service and cloud-metadata responses even though the raw response body is not directly leaked. Because the malicious source persists in the database across restarts and re-fires every 24 hours on the scheduled sync cycle, the primitive gives durable long-term SSRF without the attacker needing to remain connected.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-53983 |
| Type | SSRF |
| CVSS Score | 8.6 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-53983/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-2026-53983
# 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/sgoudelis/ground-station
- https://github.com/sgoudelis/ground-station/commit/2ecde82a8814cbea18883ce023bf45cbf06172eb
- https://github.com/sgoudelis/ground-station/security/advisories/GHSA-mjp8-x6h7-229q
Generated by PoC Generator on 2026-08-08T11:33:54.873496882
Frequently asked questions¶
What is CVE-2026-53983?¶
CVE-2026-53983 is a High (8.6) vulnerability: Ground Station prior to 0.6.0 contains an unauthenticated blind server-side request…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-53983?¶
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-2026-53983?¶
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.