Highlights
Denial of Service: 1 prior fix. Scrutinize any change in this area.
pvectorcmodule.c: 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: Incorrect reference count management (using Py_DECREF out of order) during nested structure updates in the C implementation of assoc_in can cause memory leaks, eventually leading to a Denial of Service under heavy load.