osv-2026-816
Vulnerability from osv_ossfuzz
Published
2026-05-27 00:05
Modified
2026-05-27 14:23
Summary
Heap-buffer-overflow in md_process_all_blocks
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428

Crash type: Heap-buffer-overflow READ {*}
Crash state:
md_process_all_blocks
md_parse
md_html
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "9fa747c96c57810f2439950464fb012af751f424:fb4d03dfda4e4e0c24f9a1b43ccd2dacab2bd190"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "md4c",
        "purl": "pkg:generic/md4c"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "589681bc2e61bd23eccb2226a1752ad7466f81fd"
            },
            {
              "fixed": "fb4d03dfda4e4e0c24f9a1b43ccd2dacab2bd190"
            },
            {
              "introduced": "1010c1c53d3db2eae60b1db5afd168adb416b0c4"
            }
          ],
          "repo": "https://github.com/mity/md4c",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428\n\n```\nCrash type: Heap-buffer-overflow READ {*}\nCrash state:\nmd_process_all_blocks\nmd_parse\nmd_html\n```\n",
  "id": "OSV-2026-816",
  "modified": "2026-05-27T14:23:35.023545Z",
  "published": "2026-05-27T00:05:00.416781Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=516422428"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Heap-buffer-overflow in md_process_all_blocks"
}


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