{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "4.1.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "6ec1692ee295923d9d40956befd4417d6735507b"
            },
            {
              "fixed": "9ee7d1dd5b62d8c9f16cc755e76828386bc2191f"
            },
            {
              "fixed": "0815358f9202a78bc7f3b83e19282dc3654b500f"
            }
          ],
          "repo": "https://github.com/sixlabors/imagesharp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-v76p-62qx-wwq2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106118.json"
  },
  "details": "ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, tiled TIFF decoding allocates a destination buffer using TileWidth but TiffDecompressorsFactory.Create constructs T4, T6, and Modified Huffman decompressors using the full frame width. TiffDecoderCore.DecodeTilesChunky can therefore direct frame-width fax scanlines into a tile-width buffer when TileWidth is smaller than ImageWidth. The mismatch causes attacker-controlled out-of-bounds writes, heap corruption, and process termination even with legal per-row run codes. This tiled-path vulnerability is distinct from oversized CCITT runs in strip decoding. This issue is fixed in version 4.1.1.",
  "id": "CVE-2026-106118",
  "modified": "2026-10-08T02:30:45.080128218Z",
  "published": "2026-10-06T17:59:02.778Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106118.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-v76p-62qx-wwq2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106118"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SixLabors/ImageSharp/commit/9ee7d1dd5b62d8c9f16cc755e76828386bc2191f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SixLabors/ImageSharp/pull/3176"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write"
}