{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "4.1.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "6ec1692ee295923d9d40956befd4417d6735507b"
            },
            {
              "fixed": "e8892ecd8a95dee95c4480fda51cfe0b32f3b846"
            },
            {
              "fixed": "0815358f9202a78bc7f3b83e19282dc3654b500f"
            }
          ],
          "repo": "https://github.com/sixlabors/imagesharp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jj3q-cwqj-842r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106117.json"
  },
  "details": "ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, decoding a strip TIFF using CCITT Group 3 or Modified Huffman compression can pass attacker-expanded runs to BitWriterUtils.WriteBits without first checking the current row width. T4TiffCompression.WritePixelRun can accumulate oversized makeup-code runs, and ModifiedHuffmanTiffCompression.Decompress validates the width only after writing. The unchecked writes can overflow the strip buffer, corrupt heap memory, and terminate the process. This strip-path vulnerability is distinct from the tiled decompressor-width mismatch. This issue is fixed in version 4.1.1.",
  "id": "CVE-2026-106117",
  "modified": "2026-10-08T02:30:55.885950842Z",
  "published": "2026-10-06T17:53:46.448Z",
  "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-2026-106117.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jj3q-cwqj-842r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106117"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SixLabors/ImageSharp/commit/e8892ecd8a95dee95c4480fda51cfe0b32f3b846"
    },
    {
      "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: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp"
}