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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unit_offset + unit_size. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.
FEDORA-2026-26ae66c60f (darktable-5.4.1-12.fc45, digikam-9.1.0-3.fc45, and 25 more) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-26ae66c60f
FEDORA-2026-823e06dfcf (darktable-5.4.1-12.fc45, digikam-9.1.0-3.fc45, and 25 more) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-823e06dfcf
FEDORA-2026-b8ff7153f1 (darktable-5.4.1-12.fc46, digikam-9.1.0-3.fc46, and 25 more) has been submitted as an update to Fedora 46. https://bodhi.fedoraproject.org/updates/FEDORA-2026-b8ff7153f1
FEDORA-2026-823e06dfcf (darktable-5.4.1-12.fc45, digikam-9.1.0-3.fc45, and 25 more) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-b8ff7153f1 (darktable-5.4.1-12.fc46, digikam-9.1.0-3.fc46, and 25 more) has been pushed to the Fedora 46 stable repository. If problem still persists, please make note of it in this bug report.
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle. Changing version to 45.
FEDORA-2026-a7307e699c (libheif-1.23.3-2.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-a7307e699c
FEDORA-2026-cfdbb8b2f0 (libheif-1.23.5-3.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-cfdbb8b2f0
FEDORA-2026-022ff83e3e (libheif-1.23.5-3.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-022ff83e3e
FEDORA-2026-78461b38b3 (libheif-1.23.5-3.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-78461b38b3
FEDORA-2026-78461b38b3 has been pushed to the Fedora 45 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-78461b38b3` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-78461b38b3 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-cfdbb8b2f0 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-cfdbb8b2f0` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-cfdbb8b2f0 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-022ff83e3e has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-022ff83e3e` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-022ff83e3e See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-78461b38b3 (libheif-1.23.5-3.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report.