{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.19.0"
              },
              {
                "fixed": "1.23.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "c4e4657dcf6bcc06e934632f97736f7c78dbff9e"
            },
            {
              "fixed": "089a809bf6bed1abae102d5e97b6bb8c4f53b515"
            },
            {
              "fixed": "2c4bbb54c2738d4a5efbbe3e5fa1d5d76bb88eb0"
            }
          ],
          "repo": "https://github.com/strukturag/libheif",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-73p7-m7gg-w2jv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62292.json"
  },
  "details": "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 heif_image_handle_decode_image_tile(). In libheif/codecs/uncompressed/unc_decoder.cc, unc_decoder::fetch_tile_data() computes a large tile offset and unc_decoder::get_compressed_image_data_uncompressed() validates it with range_start_offset plus range_size. For the last advertised tile (4095, 4095), the addition can wrap to zero, bypass the bounds check, and pass an invalid source pointer and a one-terabyte length to memcpy. The observed result is an out-of-bounds read and process crash; opening the file alone does not trigger the issue because tile decoding is required. This issue is fixed in version 1.23.1.",
  "id": "CVE-2026-62292",
  "modified": "2026-09-11T03:30:43.055625818Z",
  "published": "2026-08-18T21:20:24.933Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/strukturag/libheif/releases/tag/v1.23.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62292.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-73p7-m7gg-w2jv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62292"
    },
    {
      "type": "FIX",
      "url": "https://github.com/strukturag/libheif/commit/089a809bf6bed1abae102d5e97b6bb8c4f53b515"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "libheif: Out-of-bounds read in uncompressed unci tile range slicing"
}