CVE-2026-47178

A flaw was found in libheif, a HEIF and AVIF file format decoder and encoder. A local attacker could exploit this vulnerability by convincing a user to open a specially crafted HEIF file. This crafted file triggers a heap out-of-bounds write, which can lead to arbitrary code execution. This could...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the decodegridtile process. An attacker can cause a heap out-of-bounds read by supplying a crafted image file that triggers an irot-induced tile-coordinate underflow. Remediation Upgrade libheif to version 1.23.1 o...

EUVD-2026-47710

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 ImageItemGrid::decodegridtile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue...

CVE-2026-48029

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 ImageItemGrid::decodegridtile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue...

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-2026-47709

A flaw was found in libheif, a library for decoding and encoding HEIF High Efficiency Image File Format and AVIF AV1 Image File Format images. A local attacker could provide a specially crafted HEIF image file that, when processed, causes the application to crash due to a null pointer read. This...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the libheif/region.cc process. An attacker can trigger out-of-bounds memory access by crafting a HEIF file with large width and height values that cause an integer overflow during buffer allocation...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read via the vvdecpushdata2 function. An attacker can cause an out-of-bounds heap read by supplying a crafted HEIF file with a VVC track that exploits an integer overflow in the security check, bypassing intended...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write via the unci tile decoding process. An attacker can achieve arbitrary code execution by supplying a specially crafted HEIF file that triggers a heap out-of-bounds write, allowing the overwrite of a C++ vtable pointer...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference in the heifimagehandlegetimagetiling function when processing a malformed uncompressed HEIF image item that has an associated uncC property but lacks an associated ispe property. An attacker can cause a crash by...

CVE-2026-47178

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file uncompressed unci codec, tiled, component-interleaved, 4:2:0 triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer o...

CVE-2026-47178

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file uncompressed unci codec, tiled, component-interleaved, 4:2:0 triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer o...

CVE-2026-47178 libheif has Heap Out Of Bounds Write in unci subsystem

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file uncompressed unci codec, tiled, component-interleaved, 4:2:0 triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer o...

EUVD-2026-9061

pillow-heif: Integer Overflow in Encode Path Buffer Validation Leads to Heap Out-of-Bounds Read...

Amazon Linux 2023 : heif-pixbuf-loader, libheif, libheif-devel (ALAS2023-2026-1919)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1919 advisory. A critical heap-based buffer overflow vulnerability exists in libheif v1.21.2 and likely earlier versions within the handling of uncompressed HEIF images ISO/IEC 23001-17, unci item type. When...

PT-2026-60429

Name of the Vulnerable Software and Affected Versions libheif affected versions not specified Description A heap buffer overflow occurs in the uncompressed encoder when processing a HEIF image where the alpha plane is larger than the picture. This happens because the encoder writes past the...

Updated libheif packages fix security vulnerabilities

libheif has a Heap OOB Read/SEGV Crash via Zero samplesperchunk. CVE-2026-32738 libheif is Vulnerable to Infinite Loop DoS via stts Sample Duration Lookup. CVE-2026-32739 Heap-Buffer-Overflow Write in Grid Tile Chroma Compositing. CVE-2026-32740 libheif has a heap buffer overflow in...

ROS-20260713-73-0043

The vulnerability of the vvdecpushdata2 function in the HEIF File Parser component, a decoder and file format parser library, is related to the execution of operations outside of the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to gain unauthorized access to...

USN-8526-1: libheif vulnerabilities

Xianrui Dong discovered that libheif had an out-of-bounds read in its HEIF sequence track parser. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. CVE-2026-47254 Junyi Liu discovered that libheif had...

Important: libheif

Issue Overview: A critical heap-based buffer overflow vulnerability exists in libheif v1.21.2 and likely earlier versions within the handling of uncompressed HEIF images ISO/IEC 23001-17, unci item type. When processing a tiled image with chroma subsampling e.g., 4:2:0 or 4:2:2, the library fails...