Highlights
Denial of Service: 3 prior fixes. Scrutinize any change in this area.
socketio/handler.py: most-fixed (1 issue). Treat as high-risk during review.
0 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Denial of Service: Uncaught exceptions during namespace removal could bypass the termination of local spawned greenlets, leaving orphaned background jobs running indefinitely and exhausting system resources.
Denial of Service: Active circular references between the websocket and its environment prevented Python's garbage collector from reclaiming terminated WebSocket connections, causing a progressive memory leak under high connection churn.
Denial of Service: Abrupt client disconnects during active websocket write operations could raise unhandled WebSocketErrors, bypassing standard teardown paths and causing socket resource leaks.