CVE-2026-84383: Out-of-bounds Write

libheif is a HEIF and AVIF file format decoder and encoder. From 1.22.0 until 1.23.2, a crafted HEIF, HEIC, or AVIF item graph using nested iden and auxl references can make HeifPixelImage::transferchannelfromimageas append duplicate Alpha planes with different bit depths to mstorage...