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...

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 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...

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...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-49271

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offse...

OSV-2026-928 Stack-use-after-scope in StreamReader_CApi::wait_for_file_size

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=524393006 Crash type: Stack-use-after-scope READ 8 Crash state: StreamReaderCApi::waitforfilesize Boxiloc::readdata HeifFile::appenddatafromiloc...

CVE-2026-41071

CVE-2026-41071 affects libheif up to version 1.21.2. A crafted HEIF sequence file where the saiz box declares more samples than actually exist can trigger a heap‑buffer‑overflow (out‑of‑bounds read) in the SampleAuxInfoReader constructor when parsing via heif_context_read_from_file. The reader it...

CVE-2026-41071 libheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample count

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

CVE-2026-41071 libheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample count

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

SUSE CVE-2026-32738

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor mlastsample = 0 + 0 - 1 = UINT32MAX, mapping all samples to an empty...

SUSE CVE-2026-32741

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and below contain a heap buffer overflow in MaskImageCodec::decodemaskimage. When decoding a HEIF file containing a mask image mski, the function copies the full iloc extent data into a pixel buffer using memcpydst,...

ALPINE-CVE-2026-32739

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Boxstts::getsampleduration, consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and...

CVE-2026-32738

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor mlastsample = 0 + 0 - 1 = UINT32MAX, mapping all samples to an empty...

EUVD-2026-30975

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Boxstts::getsampleduration, consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and...

The vulnerability of the vvdec_push_data2() function in the HEIF File Parser component, a decoder and file format parser library, allows a malicious actor to gain unauthorized access to protected information.

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...

Amazon Linux 2023 : heif-pixbuf-loader, libheif, libheif-devel (ALAS2023-2026-1509)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1509 advisory. A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdecpushdata2 of the file libheif/plugins/decodervvdec.cc of the component HEIF File Parser. Executing a...

SUSE CVE-2026-3949

A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdecpushdata2 of the file libheif/plugins/decodervvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the vvdecpushdata2 function of the HEIF File Parser component. An attacker can cause an out-of-bounds read by manipulating the size argument during local exploitation. Remediation Upgrade libheif to version 1.23.1 ...

CVE-2026-3949

CVE-2026-3949 — libheif (up to 1.21.2) has a vulnerability in the HEIF File Parser component. The issue is in the function vvdec_push_data2 (libheif/plugins/decoder_vvdec.cc), where manipulating the argument size can cause an out-of-bounds read . The vulnerability requires local access to exploit...