CVE-2026-48029 – libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow

CVE ID :CVE-2026-48029

Published : July 22, 2026, 3:17 p.m. | 28 minutes ago

Description :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.

Severity: 7.1 | HIGH

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