A use-after-free exists in Python through 3.9 via heappushpop in heapq.
{ "cpes": [ "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe:2.3:a:python:python:3.9.0:alpha1:*:*:*:*:*:*", "cpe:2.3:a:python:python:3.9.0:alpha2:*:*:*:*:*:*" ], "severity": "High" }