SCBE-AETHERMOORE is a geometric AI governance and evaluation framework. Starting in version 4.0.2 and prior to version 4.2.1, the AetherBrowser API server (`scripts/aetherbrowser/api_server.py`) exposes the `POST /api/ops/check-email` endpoint without any authentication. Any remote attacker can call this endpoint and trigger execution of the `email_reader.py` subprocess, which connects to configured ProtonMail or Gmail accounts via IMAP and returns email metadata (sender, subject, body snippet) in the JSON response. The server binds to `0.0.0.0:8100` by default with CORS set to `allow_origins=["*"]`, making it reachable from any network or browser origin. Version 4.2.1 patches the issue.

Affected: PyPI: scbe-aethermoore

### Summary

The AetherBrowser API server (`scripts/aetherbrowser/api_server.py`) exposes the `POST /api/ops/check-email` endpoint without any authentication. Any remote attacker can call this endpoint and trigger execution of the `email_reader.py` subprocess, which connects to configured ProtonMail or Gmail accounts via IMAP and returns email metadata (sender, subject, body snippet) in the JSON response. The server binds to `0.0.0.0:8100` by default with CORS set to `allow_origins=["*"]`, making it reachable from any network or browser origin. This constitutes a critical information-disclosure vulnerability.

### Details

`scripts/aetherbrowser/api_server.py` registers the following route at line 3008 (report excerpt references line 2987; the actual line is 3008):

```python @app.post("/api/ops/check-email") async def ops_check_email(): script = ROOT / "scripts" / "apollo" / "email_reader.py" result = await asyncio.to_thread( _run_subprocess, [sys.executable, str(script)], timeout=30, ) return { "output": result.get("stdout", "")[:2000], ... } ```

No `Depends()` guard, middleware check, or API-key validation is applied. The decorator is a plain `@app.post(...)`, so FastAPI registers the route with zero access control.

The server is bound to all interfaces (line 4065/4070):

```python uvicorn.run(app, host="0.0.0.0", port=port) # default port 8100 ```

CORS middleware is configured to allow any origin (lines 486…