OSV-2026-521

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Import Source

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2026-521.yaml

JSON Data

https://api.osv.dev/v1/vulns/OSV-2026-521

Published

2026-04-04T00:05:03.478370Z

Modified

2026-07-03T14:33:49.012945Z

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::_

References

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

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

72b9939b9f5a34d155b5b11b61f4474f1176d51a

Introduced

fee5c267e764abaacbf8de6a764da6ca7a0292bd

Affected versions

Other

master

v6.*

v6.0.3

v6.0.4

v6.0.5

Ecosystem specific

{
    "severity": "MEDIUM"
}

Database specific

introduced_range

"4c8a3bd39c449eba1b07f81fd4177ad938a7fd93:69f8eb21fd1da5688523986cc911346c333806c2"

source

"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2026-521.yaml"