# CVE-2026-108573: Assimp out-of-bounds read in PLY file handler

Source: https://junglewise.ai/threats/cve-2026-108573-a-vulnerability-was-detected-in-open-asset-import-library-assimp  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-11. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-108573 · Severity: medium · CVSS 5.5 · Published 2026-10-11

Assimp is a library that imports 3D model files for use in applications and games. A flaw in its PLY file parser allows an attacker to read memory beyond intended bounds by providing a malicious model file, potentially exposing sensitive data or causing a crash. The vulnerability can be triggered remotely by simply parsing an untrusted 3D model file.

Technologies: [Assimp](https://junglewise.ai/threats/technologies/assimp). Vendors: [Assimp](https://junglewise.ai/threats/vendors/assimp).

## Quick answers

**Is CVE-2026-108573 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108573 being exploited in the wild.

**How severe is CVE-2026-108573?** Medium severity, with a CVSS score of 5.5, published 11 October 2026.

**Which products and versions are affected?** Assimp up to 6.0.5.

**Is there a fix for CVE-2026-108573?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-108573 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-108573?** Check whether you run Assimp 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.

## Technical details

An out-of-bounds read exists in the IOStreamBuffer::getNextBlock function within the PLY file handler component. The vulnerability is triggered during parsing of a specially crafted PLY file, allowing an attacker with network access to read memory outside the allocated buffer. No authentication or user interaction is required beyond opening the malicious file.

## Affected products

- Assimp Assimp up to 6.0.5

## Timeline

- 2026-10-11: disclosed

## References

- [https://vuldb.com/cve/CVE-2026-108573](https://vuldb.com/cve/CVE-2026-108573)
- [https://vuldb.com/submit/955038](https://vuldb.com/submit/955038)

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