CVE-2026-62289

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF or AVIF file containing a clean aperture box can reduce an image dimension to zero and crash or corrupt tiling results when heifimagehandlegetimagetilinghandle, 1, &tiling is called...

CVE-2026-62289

libheif ≤1.23.0 applies clean aperture transformation twice via process_image_transformations_on_tiling(), causing integer underflow in Box_clap::left_rounded(0) that constructs Fraction(0xFFFFFFFF, 2). Debug builds abort on assertion; release builds produce corrupt crops. Fixed in 1.23.1; Debian...