osv-2026-521
Vulnerability from osv_ossfuzz
Published
2026-04-04 00:05
Modified
2026-07-03 14:33
Summary
UNKNOWN READ in unsigned long Assimp::StreamReader<true, true>::Get<unsigned long>
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499121788

Crash type: UNKNOWN READ
Crash state:
unsigned long Assimp::StreamReader<true, true>::Get<unsigned long>
bool Assimp::Blender::Structure::ResolvePointer<std::__1::shared_ptr, Assimp::Bl
bool Assimp::Blender::Structure::ReadFieldPtr<2, Assimp::Blender::vector, std::_
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "introduced_range": "4c8a3bd39c449eba1b07f81fd4177ad938a7fd93:69f8eb21fd1da5688523986cc911346c333806c2"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "assimp",
        "purl": "pkg:generic/assimp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "72b9939b9f5a34d155b5b11b61f4474f1176d51a"
            },
            {
              "introduced": "fee5c267e764abaacbf8de6a764da6ca7a0292bd"
            }
          ],
          "repo": "https://github.com/assimp/assimp.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "master",
        "v6.0.3",
        "v6.0.4",
        "v6.0.5"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499121788\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nunsigned long Assimp::StreamReader\u003ctrue, true\u003e::Get\u003cunsigned long\u003e\nbool Assimp::Blender::Structure::ResolvePointer\u003cstd::__1::shared_ptr, Assimp::Bl\nbool Assimp::Blender::Structure::ReadFieldPtr\u003c2, Assimp::Blender::vector, std::_\n```\n",
  "id": "OSV-2026-521",
  "modified": "2026-07-03T14:33:49.012945Z",
  "published": "2026-04-04T00:05:03.478370Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499121788"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "UNKNOWN READ in unsigned long Assimp::StreamReader\u003ctrue, true\u003e::Get\u003cunsigned long\u003e"
}


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