README.md

# JSON Model File DoS and Prototype Pollution PoC

## Vulnerability
DoS via deeply nested/large JSON + prototype pollution for JS-based ML tools

## Files
- `poc_deep_nest.json` — 10,000 levels deep, causes stack overflow on json.load()
- `poc_huge_object.json` — 100K keys, causes excessive memory/CPU on parsing
- `poc_prototype_pollution.json` — __proto__ pollution payload for TF.js/Node consumers

## Reproduce
```python
import json
# Stack overflow from deep nesting:
with open('poc_deep_nest.json') as f:
    json.load(f)  # RecursionError
```