CVE-2026-48029

Name	CVE-2026-48029
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6417-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libheif (PTS)	bullseye	1.11.0-1	vulnerable
	bullseye (security)	1.11.0-1+deb11u2	vulnerable
	bookworm, bookworm (security)	1.15.1-1+deb12u1	vulnerable
	trixie	1.19.8-1	vulnerable
	trixie (security)	1.19.8-1+deb13u1	fixed
	forky	1.21.2-4	vulnerable
	sid	1.23.1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libheif	source	trixie	1.19.8-1+deb13u1		DSA-6417-1
libheif	source	(unstable)	1.23.1-1

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