CVE-2026-47254

libheif: libheif is a HEIF and AVIF file format decoder and encoder

CVE-2026-47254 is fixed in 20 products on 1 platform, first by SUSE-SU-2026:22153-1, released June 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.1
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
5th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
heif-gdk-pixbuf · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 heif-gdk-pixbuf 1.21.2-3ubuntu0.3 Jul 1, 2026
heif-thumbnailer · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 heif-thumbnailer 1.21.2-3ubuntu0.3 Jul 1, 2026
heif-view · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 heif-view 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif · Debian 14 1.23.1-1 DEBIAN-CVE-2026-47254 Aug 11, 2026
libheif · opensuse-leap 16.0 1.23.0-160000.1.1 OPENSUSE-SU-2026:20974-1 Jun 17, 2026
libheif · sles 15.7 1.23.0-150700.3.15.1 SUSE-SU-2026:2622-1 Jun 24, 2026
libheif · sles 16.0 1.23.0-160000.1.1 SUSE-SU-2026:22153-1 Jun 17, 2026
libheif-examples · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-examples 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-aomdec · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-aomdec 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-aomenc · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-aomenc 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-dav1d · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-dav1d 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-ffmpegdec · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-j2kdec · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-j2kdec 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-j2kenc · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-j2kenc 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-jpegdec · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-jpegdec 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-jpegenc · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-jpegenc 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-kvazaar · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-kvazaar 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-libde265 · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-libde265 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-rav1e · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-rav1e 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-svtenc · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-svtenc 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugin-x265 · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugin-x265 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif-plugins-all · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif-plugins-all 1.21.2-3ubuntu0.3 Jul 1, 2026
libheif1 · Ubuntu 26.04.1 LTS (resolute) 1.21.2-3ubuntu0.3 libheif1 1.21.2-3ubuntu0.3 Jul 1, 2026

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