CVE-2026-82591
Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- Aug 30, 2026
- Updated
- Aug 31, 2026
- Reserved
- Aug 30, 2026
Description
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AssimpOpen Asset Import Library |
|
References
- VDB-397086 | Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflowvdb-entrytechnical-description
- VDB-397086 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-82591 | CVE Analysis and Reportthird-party-advisory
- Submit #892413 | assimp Open Asset Import Library (assimp) 6.0.2 Heap-based Buffer Overflow (CWE-122)third-party-advisory
- https://github.com/assimp/assimp/pull/6718issue-trackingpatch
- https://github.com/assimp/assimp/commit/bf9dabb617c46e5133dac65cca6bff177917afcbpatch
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