GHSA-w65j-g6c7-g3m4

Affected versions contain multiple memory safety issues, such as:

- Unsoundly coercing immutable references to mutable references - Unsoundly extending lifetimes of strings - Adding the `Send` marker trait to objects that cannot be safely sent between threads

This may result in a variety of memory corruption scenarios, most likely use-after-free. A signficant refactoring effort has been conducted to resolve these issues.