Description
MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In version 1.39.2, when parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files. An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file. This is fixed in version 1.39.3.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AcademySoftwareFoundation | MaterialX | >= 1.39.2, < 1.39.3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | materialx | >= 1.39.2, < 1.39.3 | 1.39.3 | GHSA-7qw8-3vmf-gj32 |
References
- https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32
- https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf
- https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3
- https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011