# CVE-2026-10200: Assimp heap overflow in glTFCommon 4x4 Matrix Parser

Source: https://junglewise.ai/threats/cve-2026-10200-assimp-heap-overflow-in-gltfcommon-4x4-matrix-parser  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-31. Updated: 2026-05-31  
License: CC BY 4.0 with a link back

CVE-2026-10200 · Severity: medium · CVSS 5.3 · Published 2026-05-31

Assimp is a widely used library for importing various 3D model formats into applications. A vulnerability in its 4x4 matrix parser could allow a local attacker to cause a system crash or potentially execute unauthorized code by providing a specially crafted 3D file. This could impact the stability of applications using the library and potentially lead to unauthorized access to local data.

Technologies: [Assimp](https://junglewise.ai/threats/technologies/assimp). Vendors: [Assimp](https://junglewise.ai/threats/vendors/assimp).

## Quick answers

**Is CVE-2026-10200 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-10200 being exploited in the wild.

**How severe is CVE-2026-10200?** Medium severity, with a CVSS score of 5.3, published 31 May 2026.

**Which products and versions are affected?** Assimp up to 6.0.4.

**Is there a fix for CVE-2026-10200?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-10200 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-10200?** Check whether you run Assimp at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A heap-based buffer overflow vulnerability exists in Assimp versions up to 6.0.4 within the glTFCommon::CopyValue function in glTFCommon.h. The issue occurs during the parsing of 4x4 matrices when the input data is insufficient or malformed, leading to out-of-bounds memory access. An attacker with local access can exploit this by providing a malicious glTF file to an application using the library. Successful exploitation could result in a denial of service (crash) or arbitrary code execution in the context of the application. A public proof-of-concept exploit has been disclosed.

## Affected products

- Assimp Assimp up to 6.0.4

## Timeline

- 2026-05-31: disclosed: Vulnerability reported and public exploit released.
- 2026-05-31: advisory: NVD and VulDB published advisory details.

## References

- [https://github.com/assimp/assimp/](https://github.com/assimp/assimp/)
- [https://github.com/assimp/assimp/issues/6612](https://github.com/assimp/assimp/issues/6612)
- [https://github.com/user-attachments/files/27194256/poc.zip](https://github.com/user-attachments/files/27194256/poc.zip)
- [https://vuldb.com/cve/CVE-2026-10200](https://vuldb.com/cve/CVE-2026-10200)
- [https://vuldb.com/submit/821180](https://vuldb.com/submit/821180)
- [https://vuldb.com/vuln/367480](https://vuldb.com/vuln/367480)
- [https://vuldb.com/vuln/367480/cti](https://vuldb.com/vuln/367480/cti)

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