---
tags:
  - security
  - proof-of-concept
  - protobuf
license: mit
---

# Protocol Buffers Api methods materialization DoS PoC

This repository contains a benign security research PoC for a `.pb` artifact
that drives repeated-message materialization during
`api_pb2.Api.ParseFromString(...)`.

Files:

- `control_one_method.pb`
- `malicious_methods_500000.pb`
- `reproduce.py`