osv-2026-344
Vulnerability from osv_ossfuzz
Published
2026-03-03 00:20
Modified
2026-03-03 00:20
Summary
UNKNOWN READ in void Assimp::Blender::ConvertDispatcher<float>
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=488752792

Crash type: UNKNOWN READ
Crash state:
void Assimp::Blender::ConvertDispatcher<float>
void Assimp::Blender::Structure::ReadFieldArray<2, float, 3ul>
void Assimp::Blender::Structure::Convert<Assimp::Blender::MVert>

{
  "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"
            },
            {
              "fixed": "11a5d1b8ef2018d0eb765ef1ddae95a13a8b59b6"
            }
          ],
          "repo": "https://github.com/assimp/assimp.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "master",
        "v6.0.3",
        "v6.0.4"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=488752792\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nvoid Assimp::Blender::ConvertDispatcher\u003cfloat\u003e\nvoid Assimp::Blender::Structure::ReadFieldArray\u003c2, float, 3ul\u003e\nvoid Assimp::Blender::Structure::Convert\u003cAssimp::Blender::MVert\u003e\n```\n",
  "id": "OSV-2026-344",
  "modified": "2026-03-03T00:20:14.572706Z",
  "published": "2026-03-03T00:20:14.572365Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=488752792"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "UNKNOWN READ in void Assimp::Blender::ConvertDispatcher\u003cfloat\u003e"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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