Vulnerability · Published Aug 17, 2026 · Assigned by VulDB
CVE-2026-19969Open Asset Import Library Assimp 3DGS MDL7 Model Output Mesh Generator MDLLoader.cpp GenerateOutputMeshes_3DGS_MDL7 buffer overflow
Medium 5.4
In plain English
A medium-severity buffer overflow in Assimp from Open Asset Import Library. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Official description
A security vulnerability has been detected in Open Asset Import Library Assimp 17c12da. The impacted element is the function Assimp::MDLImporter::GenerateOutputMeshes_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component 3DGS MDL7 Model Output Mesh Generator. The manipulation leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | assimp | no fix listed | DEBIAN-CVE-2026-19969 |
| Debian:13 | assimp | no fix listed | DEBIAN-CVE-2026-19969 |
| Debian:14 | assimp | no fix listed | DEBIAN-CVE-2026-19969 |
| Ubuntu:22.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-19969 |
| Ubuntu:24.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-19969 |
| Ubuntu:26.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-19969 |
| Ubuntu:26.10 | assimp | no fix listed | UBUNTU-CVE-2026-19969 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Open Asset Import Library | Assimp | 17c12da |
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-391146 | Open Asset Import Library Assimp 3DGS MDL7 Model Output Mesh Generator MDLLoader.cpp GenerateOutputMeshes_3DGS_MDL7 buffer overflow vdb-entry, technical-description
- VDB-391146 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-19969 | CVE Analysis and Report third-party-advisory
- Submit #873130 | Assimp commit 17c12da Heap-based Buffer Overflow third-party-advisory
- https://github.com/assimp/assimp/issues/6631 issue-tracking
- https://github.com/user-attachments/files/27425495/poc.zip exploit