CVE-2025-53009
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
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.
- Record
CVE-2025-53009- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-121
- Updated
- 2026-11-02
EUVDEUVD-2025-23382
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.
- Record
EUVD-2025-23382- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wx6g-fm6f-w822
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
Summary
When parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion.
Details
By specification, multiple kinds of elements in MTLX support nesting other elements, such as in the case of nodegraph elements. Parsing these subtrees is implemented via recursion, and since there is no max depth imposed on the XML document, this can lead to a stack overflow when the library parses an MTLX file with an excessively high number of nested elements.
PoC
Please download the recursion_overflow.mtlx file from the following link:
https://github.com/ShielderSec/poc/tree/main/CVE-2025-53009
build/bin/MaterialXView --material recursion_overflow.mtlx
Impact
An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.
- Record
GHSA-wx6g-fm6f-w822- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-121
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-53009- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
OSV
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
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.
- Record
CVE-2025-53009- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-121
- Updated
- 2026-11-02
OSVGHSA-wx6g-fm6f-w822
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
Summary
When parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion.
Details
By specification, multiple kinds of elements in MTLX support nesting other elements, such as in the case of nodegraph elements. Parsing these subtrees is implemented via recursion, and since there is no max depth imposed on the XML document, this can lead to a stack overflow when the library parses an MTLX file with an excessively high number of nested elements.
PoC
Please download the recursion_overflow.mtlx file from the following link:
https://github.com/ShielderSec/poc/tree/main/CVE-2025-53009
build/bin/MaterialXView --material recursion_overflow.mtlx
Impact
An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.
- Record
GHSA-wx6g-fm6f-w822- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-121
- Updated
- 2026-11-02
OSVPYSEC-2026-1609
MaterialX Stack Overflow via Lack of MTLX XML Parsing Recursion Limit
Summary
When parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion.
Details
By specification, multiple kinds of elements in MTLX support nesting other elements, such as in the case of nodegraph elements. Parsing these subtrees is implemented via recursion, and since there is no max depth imposed on the XML document, this can lead to a stack overflow when the library parses an MTLX file with an excessively high number of nested elements.
PoC
Please download the recursion_overflow.mtlx file from the following link:
https://github.com/ShielderSec/poc/tree/main/CVE-2025-53009
build/bin/MaterialXView --material recursion_overflow.mtlx
Impact
An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.
- Record
PYSEC-2026-1609- CVSS 4.0
- 5.5 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-53009 is a medium vulnerability (CVSS 5.5) in Academysoftwarefoundation Materialx, published July 31, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in materialx 1.39.3.
References
github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-wx6g-fm6f-w822
nvd.nist.gov/vuln/detail/CVE-2025-53009