Description
MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In versions 1.39.2 and below, when parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion. An attacker could intentionally crash a target program that uses OpenEXR by sending a malicious MTLX file. This is fixed in version 1.39.3.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
Low
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
E
Physical
Affected products
- AcademySoftwareFoundation / MaterialX>= 1.39.2, < 1.39.3 – >= 1.39.2, < 1.39.3
References
- VENDOR_ADVISORYhttps://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-wx6g-fm6f-w822
- MISChttps://github.com/AcademySoftwareFoundation/MaterialX/issues/2504
- PATCHhttps://github.com/AcademySoftwareFoundation/MaterialX/pull/2505
- PATCHhttps://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3
- MISChttps://github.com/ShielderSec/poc/tree/main/CVE-2025-53009