UBUNTU-CVE-2026-62377

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

CVE-2026-62377

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

ALPINE-CVE-2026-50142

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.0, a crafted HEIF sequence accepted by heifcontextreadfrommemory with the msf1 sequence brand can cause unbounded heap allocation. In libheif/sequences/seqboxes.cc, Boxstsz::parse applies maxsequenceframes only to...

CVE-2026-50142

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.0, a crafted HEIF sequence accepted by heifcontextreadfrommemory with the msf1 sequence brand can cause unbounded heap allocation. In libheif/sequences/seqboxes.cc, Boxstsz::parse applies maxsequenceframes only to...

CVE-2026-62377 libheif: Reachable assertion in HeifContext::get_track() aborts on a valid-but-empty HEIF sequence file (context.cc:2110)

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

CVE-2026-62377 libheif: Reachable assertion in HeifContext::get_track() aborts on a valid-but-empty HEIF sequence file (context.cc:2110)

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

CVE-2026-62377

libheif (HEIF/AVIF decoder and encoder) versions 1.23.0 and earlier are vulnerable to a denial-of-service via a crafted HEIF sequence file. A malicious sequence accepted by heif_context_read_from_memory() leaves the context with no registered sequence tracks. A subsequent call to heif_context_get...

CVE-2026-62377 libheif: Reachable assertion in HeifContext::get_track() aborts on a valid-but-empty HEIF sequence file (context.cc:2110)

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

CVE-2026-62377

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

EUVD-2026-62191

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heifcontextreadfrommemory can leave the context with no registered sequence tracks and crash when heifcontextgettrackctx, 0 is called. HeifContext::gettrack in libheif/context.cc...

CVE-2026-62291 libheif: Heap out of bounds write in libheif uncompressed encoder when writing images with mismatched auxiliary alpha dimensions

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

CVE-2026-62291 libheif: Heap out of bounds write in libheif uncompressed encoder when writing images with mismatched auxiliary alpha dimensions

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

CVE-2026-62291

libheif ≤1.23.0 allows attacker-controlled heap corruption (OOB write/read) via mismatched alpha plane dimensions during decode-and-re-encode. Fixed in 1.23.1; SUSE, openSUSE, and PT Security have issued updates. Exploitation in the wild is not reported. Patch: https://github.com/strukturag/libhe...

EUVD-2026-62190

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

CVE-2026-62291 libheif: Heap out of bounds write in libheif uncompressed encoder when writing images with mismatched auxiliary alpha dimensions

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

CVE-2026-62291

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

CVE-2026-62292 libheif: Out-of-bounds read in uncompressed unci tile range slicing

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heifimagehandledecodeimagetile. In...

CVE-2026-62292

In libheif 1.19.0–1.23.1, unc_decoder::fetch_tile_data() computes a large tile offset that, combined with range_start_offset + range_size in get_compressed_image_data_uncompressed(), wraps to zero and bypasses the bounds check. This passes an invalid source pointer and 1 TB length to memcpy, caus...

CVE-2026-62292 libheif: Out-of-bounds read in uncompressed unci tile range slicing

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heifimagehandledecodeimagetile. In...

EUVD-2026-62189

libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.1, a crafted uncompressed HEIF image using generic zlib unci full-item compression can crash an application that decodes an advertised tile with heifimagehandledecodeimagetile. In...