bpo-34454: datetime: Fix crash on PyUnicode_AsUTF8AndSize() failure by izbyshev · Pull Request #8850 · python/cpython

the-knights-who-say-ni

@izbyshev, yes, please create a new issue on bpo, with a title regarding the null dereference bugs, and mark it as a security issue. Do mention there that this bug existed and was recently fixed in the fromisoformat methods, referencing the existing bpo issue.