OSV-2026-867

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Import Source

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2026-867.yaml

JSON Data

https://api.osv.dev/v1/vulns/OSV-2026-867

Published

2026-06-07T00:02:11Z

Modified

2026-06-07T00:02:11Z

Summary

Bad-cast to std::__shared_weak_count from invalid vptr

Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=520147546

Crash type: Bad-cast
Crash state:
Bad-cast to std::__shared_weak_count from invalid vptr
std::__1::shared_ptr<Assimp::STEP::EXPRESS::DataType const>::shared_ptr
Assimp::STEP::ReadFileHeader

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=520147546

Affected packages

OSS-Fuzz / assimp

Package

Name: assimp
Purl: pkg:generic/assimp

Affected ranges

Type: GIT
Repo: https://github.com/assimp/assimp.git
Events: Introduced

cac67afe479ac9be595d03bfa811d0e6a6baf39a

Ecosystem specific

{
    "severity": "HIGH"
}

Database specific

introduced_range

"be3d938e3e22d364b38807a247b3593fa7b260bd:626219cdd32f8fb0891464f27663d2667078d7cc"

source

"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2026-867.yaml"