CVE-2026-84384 libheif: brotli/zlib decompression paths lack output-size limits, allowing decompression-bomb OOM/DoS

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.2, crafted HEIF or AVIF mime metadata and unci image data can cause decompressbrotli and doinflate to grow accumulated output without an effective size limit or MemoryHandle accounting. The brotli path has no outpu...

CVE-2026-84384

libheif (a HEIF and AVIF file format decoder/encoder) is affected by a decompression-bomb OOM/DoS vulnerability in versions 1.19.0 through 1.23.1 . Crafted HEIF or AVIF files with malicious mime metadata and unci image data cause decompress_brotli() and do_inflate() to grow accumulated output wit...

EUVD-2026-83022

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.2, crafted HEIF or AVIF mime metadata and unci image data can cause decompressbrotli and doinflate to grow accumulated output without an effective size limit or MemoryHandle accounting. The brotli path has no outpu...

CVE-2026-84384 libheif: brotli/zlib decompression paths lack output-size limits, allowing decompression-bomb OOM/DoS

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.2, crafted HEIF or AVIF mime metadata and unci image data can cause decompressbrotli and doinflate to grow accumulated output without an effective size limit or MemoryHandle accounting. The brotli path has no outpu...

CVE-2026-84444

libheif (HEIF/AVIF decoder/encoder) is vulnerable to an out-of-bounds heap write in versions prior to 1.23.2 when the WITH_UNCOMPRESSED_CODEC option is enabled. The root cause is a missing check_component_sizes() gate in unc_encoder::encode_tile(): an independently constructed image tile whose co...

CVE-2026-84444 libheif uncompressed tiled image encoding allows out-of-bounds write

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, when WITHUNCOMPRESSEDCODEC is enabled, heifcontextaddimagetile accepts an independently constructed tile whose component-plane dimensions do not match the tile geometry established by the prototype image...

EUVD-2026-83020

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, when WITHUNCOMPRESSEDCODEC is enabled, heifcontextaddimagetile accepts an independently constructed tile whose component-plane dimensions do not match the tile geometry established by the prototype image...

CVE-2026-84383

GHSA-g89c-p67h-r497: Heap buffer overflow in scalenearestneighbor via duplicate Alpha planes from nested iden/auxl items...

CVE-2026-84383 libheif: Heap buffer overflow in `scale_nearest_neighbor()` via duplicate Alpha planes from nested `iden`/`auxl` items

libheif is a HEIF and AVIF file format decoder and encoder. From 1.22.0 until 1.23.2, a crafted HEIF, HEIC, or AVIF item graph using nested iden and auxl references can make HeifPixelImage::transferchannelfromimageas append duplicate Alpha planes with different bit depths to mstorage...

EUVD-2026-83019

libheif is a HEIF and AVIF file format decoder and encoder. From 1.22.0 until 1.23.2, a crafted HEIF, HEIC, or AVIF item graph using nested iden and auxl references can make HeifPixelImage::transferchannelfromimageas append duplicate Alpha planes with different bit depths to mstorage...

CVE-2026-84383 libheif: Heap buffer overflow in `scale_nearest_neighbor()` via duplicate Alpha planes from nested `iden`/`auxl` items

libheif is a HEIF and AVIF file format decoder and encoder. From 1.22.0 until 1.23.2, a crafted HEIF, HEIC, or AVIF item graph using nested iden and auxl references can make HeifPixelImage::transferchannelfromimageas append duplicate Alpha planes with different bit depths to mstorage...

CVE-2026-84383

libheif, a HEIF and AVIF decoder/encoder, is affected by a heap out-of-bounds write (CVSS 9.8 Critical) in versions 1.22.0 through 1.23.2. A crafted item graph using nested iden and auxl references causes scale_nearest_neighbor() to write 16-bit samples into an 8-bit Alpha plane allocation, with ...

CVE-2026-84446

libheif (a HEIF and AVIF file format decoder/encoder) prior to version 1.23.2 is vulnerable to a denial-of-service via crafted HEIF sequence timing and edit-list data. The root cause is that Track::init_sample_timing_table() computes an m_num_output_samples value exceeding the uint32_t counters u...

CVE-2026-84446 libheif: Sequence decode timing-table initialization allows non-terminating loops and unbounded memory, bypassing max_sequence_frames

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, crafted HEIF sequence timing and edit-list data can make Track::initsampletimingtable compute a logical mnumoutputsamples value that exceeds the uint32t counters used by TrackVisual::decodenextimagesample and...

EUVD-2026-83017

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, crafted HEIF sequence timing and edit-list data can make Track::initsampletimingtable compute a logical mnumoutputsamples value that exceeds the uint32t counters used by TrackVisual::decodenextimagesample and...

EUVD-2026-83015

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-2026-84448 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-2026-84448

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...

EUVD-2026-83137

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A truncated tga can leave a pending gif frame that is processed during output close. gifsplitpalette computes numpixels...

CVE-2026-65969

OpenImageIO (a toolset for reading, writing, and manipulating image files used in VFX/animation) is affected by a signed 32-bit integer overflow in GifSplitPalette() (src/gif.imageio/gif.h). A truncated TGA input can leave a pending GIF frame that is processed during output close; the multiplicat...