osv-2026-136
Vulnerability from osv_ossfuzz
Published
2026-01-25 00:10
Modified
2026-01-25 00:10
Summary
Memcpy-param-overlap in grk::memStreamRead
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=478035120

Crash type: Memcpy-param-overlap
Crash state:
grk::memStreamRead
grk::BufferedStream::read
grk::MarkerParser::readSOTorEOC
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "45394e53de1103180d6f79c997f9cc5df25eecb1:eb702655bb0e5fc39ea037a08ca26c73bf5cde01",
        "introduced_range": "3ff9df05501b96d1f0cede0e51f23a2417061ecb:ddb7b4704c9c00df168eaa97749cf3efaefddf4c"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "grok",
        "purl": "pkg:generic/grok"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5cc1466819c54e0f8879b2163c43ee764d1c400a"
            },
            {
              "fixed": "eb702655bb0e5fc39ea037a08ca26c73bf5cde01"
            }
          ],
          "repo": "https://github.com/GrokImageCompression/grok.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=478035120\n\n```\nCrash type: Memcpy-param-overlap\nCrash state:\ngrk::memStreamRead\ngrk::BufferedStream::read\ngrk::MarkerParser::readSOTorEOC\n```\n",
  "id": "OSV-2026-136",
  "modified": "2026-01-25T00:10:48.353140Z",
  "published": "2026-01-25T00:10:48.352834Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=478035120"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "Memcpy-param-overlap in grk::memStreamRead"
}


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