CVE-2026-48029
libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.
| CWE | CWE-125 CWE-191 |
| Vendor | strukturag |
| Product | libheif |
| Published | Jul 22, 2026 |
| Last Updated | Jul 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
strukturag / libheif
>= 1.19.0, < 1.22.0