CVE-2026-48029

HighCVSS 7.1/10Last modified Oct 24, 2026

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.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Weakness enumeration

CWE-125 CWE-191

Affected software

Vendor	Product	Versions
strukturag	libheif	>= 1.19.0, < 1.22.0

References

https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157Patch
https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqvMitigation, Vendor Advisory, Exploit
https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqvMitigation, Vendor Advisory, Exploit

Timeline

Published: Jul 22, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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