# CVE-2026-41071: libheif: libheif is a HEIF and AVIF file format decoder and encoder CVE-2026-41071 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-41071, released May 22, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-41071 - Priority: High - CVSS: 8.1 (high) - EPSS: 0.0030 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 22, 2026 ## Description libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow (out-of-bounds read) in the SampleAuxInfoReader constructor. The SampleAuxInfoReader constructor iterates over saiz->get_num_samples() samples but doesn't validate that this count is consistent with the number of chunks in the chunks vector. When saiz declares more samples than the chunks cover, the loop increments current_chunk past chunks.size(), causing an out-of-bounds read on the chunks vector. The vulnerability is triggered during file parsing (heif_context_read_from_file) without any additional user interaction. Any application using libheif to open untrusted HEIF files is affected. This issue has been fixed in version 1.22.0. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | heif-gdk-pixbuf Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [heif-gdk-pixbuf 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-heif-gdk-pixbuf-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | heif-gdk-pixbuf Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [heif-gdk-pixbuf 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-gdk-pixbuf-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | heif-thumbnailer Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [heif-thumbnailer 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-heif-thumbnailer-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | heif-thumbnailer Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [heif-thumbnailer 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-thumbnailer-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | heif-view Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [heif-view 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-heif-view-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | heif-view Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [heif-view 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-heif-view-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif Debian 14 | 1.23.1-1 | [DEBIAN-CVE-2026-41071](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41071.md) | May 22, 2026 | | Linux | libheif opensuse-leap 16.0 | 1.23.0-160000.1.1 | [OPENSUSE-SU-2026:20974-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20974-1.md) | Jun 17, 2026 | | Linux | libheif sles 15.7 | 1.23.0-150700.3.15.1 | [SUSE-SU-2026:2622-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2622-1.md) | Jun 24, 2026 | | Linux | libheif sles 16.0 | 1.23.0-160000.1.1 | [SUSE-SU-2026:22153-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22153-1.md) | Jun 17, 2026 | | Linux | libheif-examples Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-examples 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-examples-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-examples Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-examples 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-examples-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-aomdec Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-aomdec 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-aomdec-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-aomdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-aomdec 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-aomdec-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-aomenc Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-aomenc 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-aomenc-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-aomenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-aomenc 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-aomenc-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-dav1d Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-dav1d 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-dav1d-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-dav1d Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-dav1d 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-dav1d-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-ffmpegdec Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-ffmpegdec 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-ffmpegdec-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-ffmpegdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-ffmpegdec-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-j2kdec Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-j2kdec 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-j2kdec-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-j2kdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-j2kdec 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-j2kdec-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-j2kenc Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-j2kenc 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-j2kenc-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-j2kenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-j2kenc 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-j2kenc-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-jpegdec Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-jpegdec 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-jpegdec-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-jpegdec Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-jpegdec 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-jpegdec-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-jpegenc Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-jpegenc 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-jpegenc-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-jpegenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-jpegenc 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-jpegenc-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-kvazaar Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-kvazaar 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-kvazaar-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-kvazaar Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-kvazaar 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-kvazaar-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-libde265 Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-libde265 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-libde265-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-libde265 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-libde265 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-libde265-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-rav1e Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-rav1e 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-rav1e-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-rav1e Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-rav1e 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-rav1e-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-svtenc Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-svtenc 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-svtenc-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-svtenc Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-svtenc 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-svtenc-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugin-x265 Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugin-x265 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugin-x265-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugin-x265 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugin-x265 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugin-x265-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif-plugins-all Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif-plugins-all 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif-plugins-all-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif-plugins-all Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif-plugins-all 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif-plugins-all-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | | Linux | libheif1 Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | [libheif1 1.20.2-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libheif1-1.20.2-1ubuntu0.4.md) | Jun 24, 2026 | | Linux | libheif1 Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | [libheif1 1.21.2-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libheif1-1.21.2-3ubuntu0.1.md) | Jul 21, 2026 | --- Data as of 2026-11-09T07:25:28Z UTC. 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