CVE-2023-33595: Python

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

CPython v3.12.0 alpha 7 was discovered to contain a heap use-after-free via the function ascii_decode at /Objects/unicodeobject.c.

Affected products

• Python Python: version 3.12.0 only

Published 2023-06-07. Last modified 2026-06-17.