CVE-2026-48029
HIGHlibheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv
X_Refsource_Misc x_refsource_misc
https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157
Scores
CVSS v3
7.1
EPSS
0.0027
EPSS Percentile
18.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
CWE-191
Status
published
Products (1)
strukturag/libheif
>= 1.19.0, < 1.22.0
Published
Jul 22, 2026
Tracked Since
Jul 22, 2026