CVE-2026-3950
libheif: A vulnerability was identified in strukturag libheif up to 1.21.2
CVE-2026-3950 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-3950, released March 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
4th percentile
A vulnerability was identified in strukturag libheif up to 1.21.2. This impacts the function Track::load of the file libheif/sequences/track.cc of the component stsz/stts. The manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. Applying a patch is the recommended action to fix this issue. The patch available is inofficial and not approved yet.
Where it's fixed
| 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 | Jun 24, 2026 |
| heif-gdk-pixbuf · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | heif-gdk-pixbuf 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| heif-thumbnailer · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | heif-thumbnailer 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| heif-thumbnailer · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | heif-thumbnailer 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| heif-view · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | heif-view 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| heif-view · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | heif-view 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif · Debian 14 | 1.23.1-1 | DEBIAN-CVE-2026-3950 | Mar 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 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-examples 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-examples · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-examples 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-aomdec · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-aomdec 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-aomdec · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-aomdec 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-aomenc · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-aomenc 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-aomenc · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-aomenc 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-dav1d · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-dav1d 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-dav1d · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-dav1d 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-ffmpegdec · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-ffmpegdec 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-ffmpegdec · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-j2kdec · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-j2kdec 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-j2kdec · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-j2kdec 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-j2kenc · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-j2kenc 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-j2kenc · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-j2kenc 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-jpegdec · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-jpegdec 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-jpegdec · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-jpegdec 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-jpegenc · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-jpegenc 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-jpegenc · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-jpegenc 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-kvazaar · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-kvazaar 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-kvazaar · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-kvazaar 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-libde265 · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-libde265 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-libde265 · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-libde265 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-rav1e · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-rav1e 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-rav1e · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-rav1e 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-svtenc · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-svtenc 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-svtenc · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-svtenc 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugin-x265 · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugin-x265 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugin-x265 · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugin-x265 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif-plugins-all · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif-plugins-all 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif-plugins-all · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif-plugins-all 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
| libheif1 · Ubuntu 25.10 (questing) | 1.20.2-1ubuntu0.4 | libheif1 1.20.2-1ubuntu0.4 | Jun 24, 2026 |
| libheif1 · Ubuntu 26.04.1 LTS (resolute) | 1.21.2-3ubuntu0.1 | libheif1 1.21.2-3ubuntu0.1 | Jul 21, 2026 |
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