CVE-2026-62283 — Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M…¶
Key facts
CVE-2026-62283 is a Critical (9.9) vulnerability: Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-62283 |
| Severity | Critical (9.9) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-62283/ |
Details¶
English | 한국어
Description¶
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/io_stream.go to their creating user, and GET /ws/terminal/:id and GET /ws/file/:id only check whether the supplied UUID exists. An authenticated RoleMember who obtains a live stream UUID from logs, browser history, referer data, or telemetry can attach to another user's terminal or file-manager session, read and write target-server files, and execute shell commands. This issue is fixed in version 2.0.10.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-62283 |
| Type | IDOR |
| CVSS Score | 9.9 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-62283/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-2026-62283
# 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/nezhahq/nezha/commit/6661d6a7fc1c269f55c7f4e775082ad23fbe0f54
- https://github.com/nezhahq/nezha/releases/tag/v2.0.10
- https://github.com/nezhahq/nezha/security/advisories/GHSA-q6xx-5vr8-p898
Generated by PoC Generator on 2026-08-22T09:30:56.68444259
Frequently asked questions¶
What is CVE-2026-62283?¶
CVE-2026-62283 is a Critical (9.9) vulnerability: Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-62283?¶
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-2026-62283?¶
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.