CVE-2026-84447
Publication date 18 September 2026
Last updated 1 October 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libheif | 26.04 LTS resolute |
Fixed 1.21.2-3ubuntu0.6
|
| 24.04 LTS noble |
Fixed 1.17.6-1ubuntu4.9
|
|
| 22.04 LTS jammy |
Fixed 1.12.0-2ubuntu0.1~esm5
|
|
| 20.04 LTS focal |
Fixed 1.6.1-1ubuntu0.1~esm5
|
|
| 18.04 LTS bionic |
Fixed 1.1.0-2ubuntu0.1~esm5
|
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CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8846-1
- libheif vulnerabilities
- 29 September 2026