BIT-PILLOW-2026-112392 Pillow: NULL dereference in ImagingExpand via rank filters on zero-size images

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid image storage for a zero-size image. ImagingExpand allocates a non-empty output and then faults while replicating edges by reading the first pixel from empty input storage; ImagingRankFilter i...