---
id: CVE-2025-3160
aliases:
  - PYSEC-2025-264
title: >-
  A vulnerability has been found in Open Asset Import Library Assimp 5.4.3 and
  classified as problematic. This vulnerability affects the fu…
summary: >-
  A vulnerability has been found in Open Asset Import Library Assimp 5.4.3 and
  classified as problematic. This vulnerability affects the function
  Assimp::SceneCombiner::AddNodeHashes of the file code/Common/SceneCombiner.cpp
  of the compone…
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
vendor: pyassimp
product: pyassimp
ecosystem: pip
affected:
  - pyassimp <= 5.4.3
published: '2025-04-03'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2025-264'
references:
  - url: 'https://vuldb.com/?id.303106'
  - url: 'https://vuldb.com/?submit.542248'
  - url: 'https://github.com/assimp/assimp/issues/6025'
  - url: 'https://github.com/assimp/assimp/issues/6025#issue-2877385383'
  - url: 'https://vuldb.com/?ctiid.303106'
  - url: >-
      https://github.com/assimp/assimp/commit/a0993658f40d8e13ff5823990c30b43c82a5daf0
  - url: 'https://github.com/assimp/assimp/pull/6049'
tags:
  - osv
  - pip
epss: 0.00278
epssPercentile: 0.18033
ingestedAt: '2026-07-13T18:58:06.886Z'
---

## Overview

A vulnerability has been found in Open Asset Import Library Assimp 5.4.3 and classified as problematic. This vulnerability affects the function Assimp::SceneCombiner::AddNodeHashes of the file code/Common/SceneCombiner.cpp of the component File Handler. The manipulation leads to out-of-bounds read. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as a0993658f40d8e13ff5823990c30b43c82a5daf0. It is recommended to apply a patch to fix this issue.

## Affected packages

- `pyassimp <= 5.4.3`

## Remediation

Refer to the advisory for the patched release.