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CVE-2026-54520 — AI Agent Automation is a modular AI agent workflow automation platform with schedulers,…

Key facts

CVE-2026-54520 is a High (8.1) vulnerability: AI Agent Automation is a modular AI agent workflow automation platform with schedulers,…. This entry ships a detection-only PoC and a Docker test lab.

CVE CVE-2026-54520
Severity High (8.1)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-54520/

Details

English | 한국어

Description

AI Agent Automation is a modular AI agent workflow automation platform with schedulers, tools, and observability. Prior to 0.9.1, the executeStep file-step implementation in backend/src/agents/executor.js passes the user-controlled step.path value through path.resolve with process.cwd() and then uses the resulting path for read or write operations without checking that it remains in an approved workflow directory. An authenticated user who can create or modify workflow file steps can supply traversal segments to escape the intended workspace and read sensitive files or write and overwrite files accessible to the backend process, including application-adjacent files when process permissions allow. This issue is fixed in version 0.9.1.

Vulnerability Details

Property Value
CVE ID CVE-2026-54520
Type PATH_TRAVERSAL
CVSS Score 8.1

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-54520/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-2026-54520

# 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/vmDeshpande/ai-agent-automation/commit/f49ec7e85a6896b14c275222362e6ce4d445b783
  • https://github.com/vmDeshpande/ai-agent-automation/releases/tag/v0.9.1
  • https://github.com/vmDeshpande/ai-agent-automation/security/advisories/GHSA-cm8g-8jfq-887p

Generated by PoC Generator on 2026-09-18T08:42:28.811092998

Frequently asked questions

What is CVE-2026-54520?

CVE-2026-54520 is a High (8.1) vulnerability: AI Agent Automation is a modular AI agent workflow automation platform with schedulers,…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-54520?

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-2026-54520?

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.