CVE-2026-52877 — Streambert is a cross-platform Electron Desktop App to stream and download video content.¶
Key facts
CVE-2026-52877 is a High (8.3) vulnerability: Streambert is a cross-platform Electron Desktop App to stream and download video content.. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-52877 |
| Severity | High (8.3) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-52877/ |
Details¶
English | 한국어
Description¶
Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-external IPC handler in src/ipc/downloads.js passes a renderer-supplied url directly to Electron's shell.openExternal without validating its protocol. A compromised renderer can submit file: URIs or operating-system-specific custom schemes, causing the host to open local files, access remote resources through registered handlers, or launch scripts and applications supported by those handlers. This issue is fixed in version 2.6.0.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-52877 |
| Type | RCE |
| CVSS Score | 8.3 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-52877/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-2026-52877
# 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/truelockmc/streambert/commit/8fd7eb1d358d1d69e57e51ddfa71b066b44ff616
- https://github.com/truelockmc/streambert/releases/tag/2.6.0
- https://github.com/truelockmc/streambert/security/advisories/GHSA-j2vw-gg3g-wwqr
- https://github.com/truelockmc/streambert/security/advisories/GHSA-j2vw-gg3g-wwqr
Generated by PoC Generator on 2026-08-25T18:24:05.541969603
Frequently asked questions¶
What is CVE-2026-52877?¶
CVE-2026-52877 is a High (8.3) vulnerability: Streambert is a cross-platform Electron Desktop App to stream and download video content.. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-52877?¶
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-2026-52877?¶
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.