RUSTSEC-2020-0074: pyo3: Reference counting error in `From<Py<T>>` November 28, 2020 Description A bug in From<Py<T>> would lead to an extra reference count decrement, often leading to use-after-free issues. More Info https://github.com/PyO3/pyo3/pull/1297 Patched Versions >=0.12.4