USN-8774-1: libheif vulnerabilities
Publication date
16 September 2026
Overview
Several security issues were fixed in libheif.
Releases
Packages
- libheif - An ISO/IEC 23008-12:2017 HEIF and AVIF file format decoder and encoder
Details
Ali Firas discovered that libheif incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2026-62291)
Dmitrijs Trizna discovered that libheif incorrectly handled certain image
sequences. An attacker could possibly use this issue to cause a denial of
service. (CVE-2026-62377)
Ali Firas discovered that libheif incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2026-62291)
Dmitrijs Trizna discovered that libheif incorrectly handled certain image
sequences. An attacker could possibly use this issue to cause a denial of
service. (CVE-2026-62377)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.