CVE-2026-48029: high-severity vulnerability in strukturag libheif
libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected products
strukturag · libheifRelated CVEs — strukturag libheif
In the same product, most dangerous first.
CVE-2026-84383CRITICALlibheif: Heap buffer overflow in `scale_nearest_neighbor()` via duplicate Alpha planes from nested `iden`/`auxl` itemsEPSS 0.7%CVE-2026-32882HIGHlibheif: Heap Buffer OOB Read in overlay compositing due to wrong alpha strideEPSS 0.7%CVE-2026-32740HIGHlibheif: Heap-Buffer-Overflow Write in Grid Tile Chroma CompositingEPSS 0.7%CVE-2026-50142HIGHlibheif: unbounded heap allocation in HEIF sequence parser (stsz fixed-size mode missing bound check)EPSS 0.7%CVE-2026-62292HIGHlibheif: Out-of-bounds read in uncompressed unci tile range slicingEPSS 0.6%CVE-2026-84447HIGHlibheif: Derived-image indirect reference chains and tiled offsets bypass decode caching and MemoryHandle limits, causing CPU/memory amplification DoSEPSS 0.5%