CVE-2026-84383

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...

UBUNTU-CVE-2026-84383

GHSA-g89c-p67h-r497: Heap buffer overflow in scalenearestneighbor via duplicate Alpha planes from nested iden/auxl items...