Medium severity6.1NVD Advisory· Published Jul 21, 2026· Updated Jul 27, 2026
CVE-2026-47254
CVE-2026-47254
Description
libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, Track::init_sample_timing_table() in libheif/sequences/track.cc stores an out-of-bounds chunk index (m_chunks.size()) into m_presentation_timeline when the number of chunks defined in the stco box is less than the number of samples in stsz. A subsequent call to heif_track_get_next_raw_sequence_sample() reads m_chunks[chunk_idx] with that OOB index, causing a heap-buffer-overflow. Version 1.22.0 fixes the issue.
Affected products
4cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*range: <1.22.0
- (no CPE)range: <1.22.0
- osv-coords2 versionspkg:rpm/opensuse/libheif&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/libheif&distro=openSUSE%20Tumbleweed
< 1.23.0-160000.1.1+ 1 more
- (no CPE)range: < 1.23.0-160000.1.1
- (no CPE)range: < 1.22.2-1.1
Patches
Vulnerability mechanics
References
1- github.com/strukturag/libheif/security/advisories/GHSA-wqjg-4x9g-6cvgnvdExploitMitigationVendor Advisory
News mentions
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