Is CVE-2025-53009 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-53009 being exploited in the wild.

How severe is CVE-2025-53009?

Medium severity, with a CVSS score of 4, published 31 July 2025.

Which products and versions are affected?

MaterialX (PyPI) = 1.39.2, ECOSYSTEM:introduced=1.39.2,fixed=1.39.3.

Is there a fix for CVE-2025-53009?

Yes. MaterialX (PyPI): upgrade to 1.39.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-53009 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2025-53009?

Check whether you run MaterialX (PyPI) 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.

CVE-2025-53009: AcademySoftwareFoundation MaterialX stack overflow in XML parsing

CVE-2025-53009 · Severity: medium · CVSS 4 · Published 2025-07-31

MaterialX is an open-source library used for describing and sharing rich visual materials in computer graphics and film production. A vulnerability in how the library handles complex files could allow an attacker to crash applications that use this software. By providing a specially crafted material file with excessive nesting, an attacker can cause a service outage or application failure, potentially disrupting production workflows.

Technologies: MaterialX (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-53009 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-53009 being exploited in the wild.
How severe is CVE-2025-53009?: Medium severity, with a CVSS score of 4, published 31 July 2025.
Which products and versions are affected?: MaterialX (PyPI) = 1.39.2, ECOSYSTEM:introduced=1.39.2,fixed=1.39.3.
Is there a fix for CVE-2025-53009?: Yes. MaterialX (PyPI): upgrade to 1.39.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-53009 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2025-53009?: Check whether you run MaterialX (PyPI) 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.

How to fix

MaterialX (PyPI): upgrade to 1.39.3 or later
```
pip install "MaterialX>=1.39.3"
```

Technical details

A stack-based buffer overflow (CWE-121) exists in MaterialX version 1.39.2 due to a lack of recursion depth limits during XML parsing. The library uses recursive functions to process nested elements like 'nodegraph' within MTLX files. An attacker can provide a malicious MTLX file containing an excessively high number of nested elements to exhaust the stack memory, resulting in a crash (denial of service). The issue is reachable over the network if an application accepts and parses untrusted MTLX files. This vulnerability is addressed in version 1.39.3.

Affected products

AcademySoftwareFoundation MaterialX 1.39.2

Identifiers

CVE-2025-53009
GHSA-wx6g-fm6f-w822
PYSEC-2026-1609

Timeline

2025-07-31: disclosed
2025-07-31: advisory
2025-07-31: patched: Fixed in version 1.39.3

References

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