Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS

Summary SpiderImagePlugin's seek bypasses the decompression bomb check, allowing a tiny 1KB crafted SPIDER stack file to trigger a multi-gigabyte allocation on im.load. Affected versions All versions up to and including current HEAD v13.0.0.dev0, commit e7a7ea84 Root cause Image.open runs...