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...

CVE-2026-47254 libheif Has Heap Buffer Overflow in `Track::get_next_sample_raw_data()` -- OOB Chunk Vector Access

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...

CVE-2026-47254

CVE-2026-47254 affects libheif before 1.22.0. The issue arises when Track::init_sample_timing_table() stores an out-of-bounds chunk index into m_presentation_timeline if the stco-defined chunks are fewer than samples in stsz. A subsequent call to heif_track_get_next_raw_sequence_sample() reads m_...

EUVD-2026-46436

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...

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...