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

CVE-2026-48029

libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
strukturag / libheif	affected >= 1.19.0, < 1.22.0

CWE

CWE-125, CWE-191

References

https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv
https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157

ADP enrichment

CISA-ADP

No English description supplied.

https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv