CVE-2026-48029 libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItemGrid::decodegridtile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue...

CVE-2025-43967

libheif before 1.19.6 has a NULL pointer dereference in ImageItemGrid::getdecoder in image-items/grid.cc because a grid image can reference a nonexistent image item...

UBUNTU-CVE-2025-43967

libheif before 1.19.6 has a NULL pointer dereference in ImageItemGrid::getdecoder in image-items/grid.cc because a grid image can reference a nonexistent image item...