# CVE-2026-100131: Adobe Substance 3D Sampler out-of-bounds read

Source: https://junglewise.ai/threats/cve-2026-100131-substance3d-sampler-is-affected-by-an-out-of-bounds-read  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-100131 · Severity: medium · CVSS 5.5 · Published 2026-10-13

Adobe Substance 3D Sampler is a 3D asset creation and texturing tool used by designers and artists. An out-of-bounds memory read flaw allows an attacker to extract sensitive data from memory by tricking a user into opening a malicious file. While this specific vulnerability does not enable code execution, it could expose confidential information such as encryption keys or other sensitive data in memory.

Technologies: [Adobe Substance 3D Sampler](https://junglewise.ai/threats/technologies/substance-3d-sampler). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-100131 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100131 being exploited in the wild.

**How severe is CVE-2026-100131?** Medium severity, with a CVSS score of 5.5, published 13 October 2026.

**Which products and versions are affected?** Adobe Substance 3D Sampler 6.0.3 and earlier.

**Is there a fix for CVE-2026-100131?** Yes: fixed in Substance 3D Sampler 6.0.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-100131 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-100131?** Check whether you run Adobe Substance 3D Sampler 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

- Fixed in Substance 3D Sampler 6.0.4

## Technical details

CVE-2026-100131 is an out-of-bounds read vulnerability (CWE-125) in Adobe Substance 3D Sampler that permits disclosure of sensitive memory contents. The vulnerability requires local file access and user interaction to open a crafted file; no privileges are required and the attack vector is local. An attacker gains the ability to read arbitrary memory regions, potentially exposing secrets.

## Affected products

- Adobe Substance 3D Sampler 6.0.3 and earlier

## Timeline

- 2026-10-13: disclosed
- 2026-10-13: patched

## References

- [https://www.adobe.com/trust/security/products/substance3d-sampler/apsb26-159.html](https://www.adobe.com/trust/security/products/substance3d-sampler/apsb26-159.html)

## Related threats

- [Adobe Substance 3D Sampler out-of-bounds write in file parsing](https://junglewise.ai/threats/cve-2026-83966-substance3d-sampler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance 3D Sampler stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-83965-substance3d-sampler-is-affected-by-a-stack-based-buffer-overflow)
- [Adobe Substance 3D Sampler out-of-bounds read in memory](https://junglewise.ai/threats/cve-2026-100130-substance3d-sampler-is-affected-by-an-out-of-bounds-read)
- [Adobe Substance3D Sampler heap buffer overflow](https://junglewise.ai/threats/cve-2026-83959-adobe-substance3d-sampler-heap-buffer-overflow)
- [Adobe Substance3D Sampler out-of-bounds write](https://junglewise.ai/threats/cve-2026-71382-adobe-substance3d-sampler-out-of-bounds-write)