CVE-2026-62677 — Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding…¶

Key facts

CVE-2026-62677 is a High (8.8) vulnerability: Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding…. This entry ships a detection-only PoC and a Docker test lab.


CVE	CVE-2026-62677
Severity	High (8.8)
Detection / prevention	—
PoC	poc.py
Source	2026/CVE-2026-62677/

Details¶

English | 한국어

Description¶

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, an authenticated user can upload a session-scoped agent bundle with an absolute or traversal-containing os_env.cwd value because omnigent/spec/parser.py stores the value verbatim and omnigent/spec/validator.py does not constrain it. On a runner where OMNIGENT_RUNNER_WORKSPACE is unset, omnigent/runner/resource_registry.py preserves the attacker-controlled path and omnigent/inner/os_env.py uses the resolved path as the environment root and copytree source. The _assert_within_cwd check then treats that attacker-selected root as trusted, allowing sys_os_read, write, edit, and shell tools to access runner files and environment secrets outside the intended workspace. This issue is fixed in version 0.3.0.

Vulnerability Details¶

Property	Value
CVE ID	CVE-2026-62677
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-2026-62677/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-2026-62677

# 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/omnigent-ai/omnigent/commit/7ca0cca3c9a65c04c489edf68f0e080424a26868
https://github.com/omnigent-ai/omnigent/pull/1417
https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0
https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-p8rw-8qj3-hf33

Generated by PoC Generator on 2026-08-22T05:51:01.038773473

Frequently asked questions¶

What is CVE-2026-62677?¶

CVE-2026-62677 is a High (8.8) vulnerability: Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-62677?¶

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-2026-62677?¶

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.