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CVE-2026-73667 — OpenChoreo is a complete, open-source developer platform for Kubernetes.

Key facts

CVE-2026-73667 is a High (8.8) vulnerability: OpenChoreo is a complete, open-source developer platform for Kubernetes.. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-73667
Severity High (8.8)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-73667/

Details

English | 한국어

Description

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.0-rc.2, OpenChoreo Workflow Plane templates under samples/getting-started/workflow-templates/ interpolated developer-controlled workflow parameters into shell program text executed through sh -c instead of passing the values through container.env, allowing arbitrary commands to run in workflow pods while affected privileged Podman templates lacked hostUsers: false. This issue is fixed in versions 1.0.4, 1.1.4, and 1.2.0-rc.2.

Vulnerability Details

Property Value
CVE ID CVE-2026-73667
Type RCE
CVSS Score 8.8

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-73667/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-2026-73667

# 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/openchoreo/openchoreo/commit/017c3c6d8b27c21d11c8c2b43da1846aa7ae73b9
  • https://github.com/openchoreo/openchoreo/commit/65c081ff74618714cb0c82b5d0e0fad2c2cbc46b
  • https://github.com/openchoreo/openchoreo/commit/b274127a4342e5433c5035384cef57478b5b65ed
  • https://github.com/openchoreo/openchoreo/commit/fb2b659b9884eb45fa4f02b9cc7e89718a0276b7
  • https://github.com/openchoreo/openchoreo/pull/4193
  • https://github.com/openchoreo/openchoreo/pull/4243
  • https://github.com/openchoreo/openchoreo/pull/4277
  • https://github.com/openchoreo/openchoreo/pull/4297
  • https://github.com/openchoreo/openchoreo/releases/tag/v1.0.4
  • https://github.com/openchoreo/openchoreo/releases/tag/v1.1.4
  • https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2
  • https://github.com/openchoreo/openchoreo/security/advisories/GHSA-2mw5-23gm-pccq

Generated by PoC Generator on 2026-08-15T13:04:24.848192658

Frequently asked questions

What is CVE-2026-73667?

CVE-2026-73667 is a High (8.8) vulnerability: OpenChoreo is a complete, open-source developer platform for Kubernetes.. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-73667?

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-2026-73667?

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.