{
  "cveId": "CVE-2026-62377",
  "url": "https://patchblox.com/security/cve/CVE-2026-62377",
  "summary": "CVE-2026-62377 is fixed in 20 products on 1 platform, first by SUSE-SU-2026:3597-1, released August 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libheif: libheif is a HEIF and AVIF file format decoder and encoder",
  "description": "libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heif_context_read_from_memory() can leave the context with no registered sequence tracks and crash when heif_context_get_track(ctx, 0) is called. HeifContext::get_track() in libheif/context.cc executes assert(has_sequence()) before its normal error handling, so assert-enabled builds abort instead of allowing the public wrapper in libheif/api/libheif/heif_sequences.cc to return null. In release builds, removing the assertion lets the track_id zero path dereference m_tracks.begin()-\u003Esecond on an empty map, which is undefined behavior and typically crashes. The issue is reachable through documented public APIs after parsing attacker-controlled bytes. This issue is fixed in version 1.23.1.",
  "published": "2026-08-12T11:48:46Z",
  "severity": "medium",
  "cvss": 4.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
  "epss": 0.00413,
  "epssPercentile": 0.3589,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "heif-gdk-pixbuf",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "heif-gdk-pixbuf 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-gdk-pixbuf-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "heif-thumbnailer",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "heif-thumbnailer 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-thumbnailer-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "heif-view",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "heif-view 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-view-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "Debian 14",
      "fixedVersion": "1.23.1-1",
      "fix": "DEBIAN-CVE-2026-62377",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-62377",
      "released": "2026-08-20T23:27:07Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.23.1-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21644-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21644-1",
      "released": "2026-08-25T06:33:48Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "sles 15.7",
      "fixedVersion": "1.23.1-150700.3.18.1",
      "fix": "SUSE-SU-2026:3597-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3597-1",
      "released": "2026-08-12T11:48:46Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "sles 16.0",
      "fixedVersion": "1.23.1-160000.1.1",
      "fix": "SUSE-SU-2026:23320-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23320-1",
      "released": "2026-08-25T06:32:48Z"
    },
    {
      "platform": "linux",
      "product": "libheif-examples",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-examples 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-examples-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-aomdec 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-aomdec-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-aomenc 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-aomenc-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-dav1d",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-dav1d 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-dav1d-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-ffmpegdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-ffmpegdec-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-j2kdec 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-j2kdec-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-j2kenc 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-j2kenc-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-jpegdec 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-jpegdec-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-jpegenc 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-jpegenc-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-kvazaar",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-kvazaar 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-kvazaar-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-libde265",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-libde265 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-libde265-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-rav1e",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-rav1e 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-rav1e-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-svtenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-svtenc 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-svtenc-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-x265",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugin-x265 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-x265-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugins-all",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif-plugins-all 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugins-all-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif1",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.5",
      "fix": "libheif1 1.21.2-3ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif1-1.21.2-3ubuntu0.5",
      "released": "2026-08-19T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}