Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the Track::initsampletimingtable process. An attacker can trigger a heap buffer overflow by providing a crafted file where the number of chunks defined in the stco box is less than the number of samples in stsz,...

CVE-2026-47254

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, Track::initsampletimingtable in libheif/sequences/track.cc stores an out-of-bounds chunk index mchunks.size into mpresentationtimeline when the number of chunks defined in the stco box is less than the number of...