Pillow before 9.2.0 performs Improper Handling of Highly Compressed GIF Data (Data Amplification).
https://bugs.gentoo.org/855683
https://github.com/python-pillow/Pillow/commit/11918eac0628ec8ac0812670d9838361ead2d6a4
https://github.com/python-pillow/Pillow/pull/6402
https://github.com/python-pillow/Pillow/releases/tag/9.2.0