CLSA-2026-1771956748 gimp: Fix of CVE-2025-15059

CVE-2025-15059: fix PSP file loader to validate channel types for grayscale images, preventing invalid memory access from incorrect offset computation...

CVE-2021-41413

ok-file-formats master 2021-9-12 is affected by a buffer overflow in okjpgconvertdataunitgrayscale and okjpgconvertYCbCrtoRGB...