CVE-2026-84448

libheif , a HEIF and AVIF file format decoder/encoder, contains a heap out-of-bounds read in its region writer API prior to version 1.23.2 . The function heif_region_item_add_region_inline_mask_data() in heif_regions.cc accepts a mask_data_len parameter without verifying it matches the byte count...

CVE-2026-84448 libheif: Heap out-of-bounds read in libheif inline-mask region API (heif_region_item_add_region_inline_mask_data / heif_region_get_mask_image)

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, the public heifregionitemaddregioninlinemaskdata function in libheif/api/libheif/heifregions.cc accepts maskdatalen without verifying that it equals the byte count required by width and height. A later...

CVE-2026-47714

A flaw was found in libheif, a HEIF and AVIF file format decoder and encoder. An integer overflow vulnerability exists in the inline mask parsing code, where the product of image width and height can exceed the maximum 32-bit unsigned integer value. This leads to an undersized buffer allocation,...

CVE-2026-47714

The issue is a concrete, exploitable flaw in libheif up to version 1.21.2 (patched in 1.22.0) where inline mask size calculation in libheif/region.cc can overflow while parsing width and height as 32-bit unsigned ints. Their product can exceed UINT32_MAX, causing an undersized allocation and out-...

EUVD-2026-46434

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, the inline mask parsing code in libheif/region.cc contains an integer overflow. Both width and height are unsigned int 32-bit values parsed from the HEIF file. Their product can exceed UINT32MAX, wrapping to...

USN-8526-2 libheif vulnerabilities

USN-8526-1 fixed vulnerabilities in libheif. This update provides the corresponding updates for CVE-2026-47709 and CVE-2026-47714 in Ubuntu 24.04 LTS. Original advisory details: Junyi Liu discovered that libheif had a null pointer dereference in its image tiling interface. An attacker could...