#### What's Fixed 

* Introduced AST-based validation to prevent unauthorized imports, including indirect and bypass attempts. Only explicitly approved modules are now allowed.
* Added a permanent blacklist of high-risk modules to strengthen security across all configurations. The following modules are now restricted:
  `pickle`, `cPickle`, `marshal`, `shelve`, `shutil`, `pathlib`, `socket`, `http`, `urllib`, `urllib2`, `multiprocessing`, `tempfile`, `glob`.