# CVE-2025-53011: PYSEC-2026-1607 - MaterialX Null Pointer Dereference in MaterialXCore Shader Generation due to Unchecked implGraphOutput

Source: https://junglewise.ai/threats/cve-2025-53011-materialx-null-pointer-dereference-in-materialxcore-shader  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2025-53011 · Severity: medium · CVSS 4 · Published 2026-07-07

MaterialX Null Pointer Dereference in MaterialXCore Shader Generation due to Unchecked implGraphOutput

Technologies: [MaterialX (PyPI)](https://junglewise.ai/threats/technologies/materialx). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2025-53011 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-53011 being exploited in the wild.

**How severe is CVE-2025-53011?** Medium severity, with a CVSS score of 4, published 7 July 2026.

**Which products and versions are affected?** MaterialX (PyPI) ECOSYSTEM:introduced=1.39.2,fixed=1.39.3.

**Is there a fix for CVE-2025-53011?** 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.

**Am I affected by CVE-2025-53011?** 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

  ```sh
  pip install "MaterialX>=1.39.3"
  ```


## Affected products

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

## Identifiers

- CVE-2025-53011
- GHSA-7qw8-3vmf-gj32
- PYSEC-2026-1607

## Related threats

- [PYSEC-2026-1608 - MaterialX Lack of MTLX Import Depth Limit Leads to DoS (Denial-Of-Service) Via Stack Exhaustion](https://junglewise.ai/threats/cve-2025-53012-materialx-lack-of-mtlx-import-depth-limit-leads-to-dos-denial-of)
- [PYSEC-2026-1606 - MaterialX Null Pointer Dereference in getShaderNodes due to Unchecked nodeGraph->getOutput return](https://junglewise.ai/threats/cve-2025-53010-materialx-null-pointer-dereference-in-getshadernodes)
- [AcademySoftwareFoundation MaterialX stack overflow in XML parsing](https://junglewise.ai/threats/cve-2025-53009-academysoftwarefoundation-materialx-stack-overflow-in-xml-parsing)