CVE-2026-84447
published 2026-09-18CVE-2026-84447: libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.52%
42.7th percentile
libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same base image because processed_ids is copied per branch and ImageItem::decode_image() has no shared operation budget. This vulnerability is fixed in 1.23.2.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| strukturag | libheif | < 1.23.2 | 1.23.2 |
| ubuntu | libheif | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_ubuntu7.5HIGH
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Bugzilla
CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [fedora-43]
bugzilla·2026-09-23·CVSS 7.5
CVE-2026-84447 [HIGH] CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [fedora-43]
CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [fedora-43]
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. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same base image because processed_ids is copied per branch and ImageItem::decode_image() has no shared operation budget. This vulnerability is fixed in 1.23.2.
Discussion:
This bug is already fixed in a published Bodhi update.
---
FEDORA-2026-022ff83e3e (libheif-1.23.5-3.fc43) has been submitted as an update to Fedor
Bugzilla
CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [epel-all]
bugzilla·2026-09-23·CVSS 7.5
CVE-2026-84447 [HIGH] CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [epel-all]
CVE-2026-84447 libheif: libheif: Denial of Service via crafted HEIF/AVIF image files [epel-all]
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. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same base image because processed_ids is copied per branch and ImageItem::decode_image() has no shared operation budget. This vulnerability is fixed in 1.23.2.
Discussion:
This bug is already fixed in a published Bodhi update.
---
FEDORA-EPEL-2026-0d891ec3ad (aom-3.13.3-1.el10_3 and libheif-1.23.5-4.el10_3) has been s
2026-09-18
Published