# CVE-2026-62292: libheif: libheif is a HEIF and AVIF file format decoder and encoder CVE-2026-62292 is fixed in 27 products on 1 platform, first by DEBIAN-CVE-2026-62292, released August 8, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-62292 - Priority: Routine - CVSS: n/a (Medium) - EPSS: 0.0056 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Aug 12, 2026 ## Description libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heif_image_handle_decode_image_tile(). In libheif/codecs/uncompressed/unc_decoder.cc, unc_decoder::fetch_tile_data() computes a large tile offset and unc_decoder::get_compressed_image_data_uncompressed() validates it with range_start_offset plus range_size. For the last advertised tile (4095, 4095), the addition can wrap to zero, bypass the bounds check, and pass an invalid source pointer and a one-terabyte length to memcpy. The observed result is an out-of-bounds read and process crash; opening the file alone does not trigger the issue because tile decoding is required. This issue is fixed in version 1.23.1. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | heif-gdk-pixbuf Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [heif-gdk-pixbuf 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-gdk-pixbuf-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | heif-pixbuf-loader amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | heif-pixbuf-loader-debuginfo amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | heif-thumbnailer Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [heif-thumbnailer 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-thumbnailer-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | heif-view Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [heif-view 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-view-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif Debian 13.5 (trixie) | 1.19.8-1+deb13u1 | [DEBIAN-CVE-2026-62292](https://patchblox.com/security/data/fix/linux/debian-cve-2026-62292.md) | Aug 8, 2026 | | Linux | libheif Debian 14 | 1.23.1-1 | [DEBIAN-CVE-2026-62292](https://patchblox.com/security/data/fix/linux/debian-cve-2026-62292.md) | Aug 8, 2026 | | Linux | libheif amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif opensuse-leap 16.0 | 1.23.1-160000.1.1 | [OPENSUSE-SU-2026:21644-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21644-1.md) | Aug 25, 2026 | | Linux | libheif sles 15.7 | 1.23.1-150700.3.18.1 | [SUSE-SU-2026:3597-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3597-1.md) | Aug 12, 2026 | | Linux | libheif sles 16.0 | 1.23.1-160000.1.1 | [SUSE-SU-2026:23320-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23320-1.md) | Aug 25, 2026 | | Linux | libheif-debuginfo amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif-debugsource amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif-devel amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif-examples Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-examples 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-examples-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-aomdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-aomdec 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-aomdec-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-aomenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-aomenc 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-aomenc-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-dav1d Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-dav1d 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-dav1d-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-ffmpegdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-ffmpegdec-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-j2kdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-j2kdec 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-j2kdec-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-j2kenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-j2kenc 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-j2kenc-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-jpegdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-jpegdec 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-jpegdec-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-jpegenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-jpegenc 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-jpegenc-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-kvazaar Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-kvazaar 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-kvazaar-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-libde265 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-libde265 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-libde265-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-rav1e Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-rav1e 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-rav1e-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-svtenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-svtenc 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-svtenc-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugin-x265 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugin-x265 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-x265-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-plugins-all Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif-plugins-all 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugins-all-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | | Linux | libheif-tools amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif-tools-debuginfo amzn 2023 | 1.19.8-1.amzn2023.0.8 | [ALAS2023-2026-2134](https://patchblox.com/security/data/fix/linux/alas2023-2026-2134.md) | Sep 14, 2026 | | Linux | libheif1 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.4 | [libheif1 1.21.2-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif1-1.21.2-3ubuntu0.4.md) | Aug 12, 2026 | --- Data as of 2026-11-09T01:18:40Z UTC. 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