---
id: CVE-2026-116104
title: >-
  Sony Neural Network Libraries NNP Converter utils.py
  func_set_nnabla_version_decorate code injection
summary: >-
  A security flaw has been discovered in Sony Neural Network Libraries up to
  1.39.0. This impacts the function func_set_nnabla_version_decorate of the file
  python/src/nnabla/utils/converter/utils.py of the component NNP Converter.
  Performi…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-94
  - CWE-74
vendor: Sony
product: Neural Network Libraries
affected:
  - neural_network_libraries 1.0
  - neural_network_libraries 1.1
  - neural_network_libraries 1.2
  - neural_network_libraries 1.3
  - neural_network_libraries 1.4
  - neural_network_libraries 1.5
  - neural_network_libraries 1.6
  - neural_network_libraries 1.7
  - neural_network_libraries 1.8
  - neural_network_libraries 1.9
  - neural_network_libraries 1.10
  - neural_network_libraries 1.11
  - neural_network_libraries 1.12
  - neural_network_libraries 1.13
  - neural_network_libraries 1.14
  - neural_network_libraries 1.15
  - neural_network_libraries 1.16
  - neural_network_libraries 1.17
  - neural_network_libraries 1.18
  - neural_network_libraries 1.19
  - neural_network_libraries 1.20
  - neural_network_libraries 1.21
  - neural_network_libraries 1.22
  - neural_network_libraries 1.23
  - neural_network_libraries 1.24
  - neural_network_libraries 1.25
  - neural_network_libraries 1.26
  - neural_network_libraries 1.27
  - neural_network_libraries 1.28
  - neural_network_libraries 1.29
  - neural_network_libraries 1.30
  - neural_network_libraries 1.31
  - neural_network_libraries 1.32
  - neural_network_libraries 1.33
  - neural_network_libraries 1.34
  - neural_network_libraries 1.35
  - neural_network_libraries 1.36
  - neural_network_libraries 1.37
  - neural_network_libraries 1.38
  - neural_network_libraries 1.39.0
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T01:00:15.928Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116104'
references:
  - url: 'https://vuldb.com/vuln/426172'
    label: >-
      VDB-426172 | Sony Neural Network Libraries NNP Converter utils.py
      func_set_nnabla_version_decorate code injection
  - url: 'https://vuldb.com/vuln/426172/cti'
    label: 'VDB-426172 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-116104'
    label: CVE-2026-116104 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1003040'
    label: >-
      Submit #1003040 | Sony NNabla 1.39.0 (final release; commit cbf0545b
      verified) Code Injection
  - url: >-
      https://github.com/3em0/cve_repo/blob/main/2026/Sony-NNabla-1.39.0-Code-Injection-in-NNP-Converter-('function.type'-eval()).md
tags:
  - cve.org
ingestedAt: '2026-10-26T02:13:26.480Z'
---

## Overview

A security flaw has been discovered in Sony Neural Network Libraries up to 1.39.0. This impacts the function func_set_nnabla_version_decorate of the file python/src/nnabla/utils/converter/utils.py of the component NNP Converter. Performing a manipulation of the argument function.type results in code injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

## Affected

- `neural_network_libraries 1.0`
- `neural_network_libraries 1.1`
- `neural_network_libraries 1.2`
- `neural_network_libraries 1.3`
- `neural_network_libraries 1.4`
- `neural_network_libraries 1.5`
- `neural_network_libraries 1.6`
- `neural_network_libraries 1.7`
- `neural_network_libraries 1.8`
- `neural_network_libraries 1.9`
- `neural_network_libraries 1.10`
- `neural_network_libraries 1.11`
- `neural_network_libraries 1.12`
- `neural_network_libraries 1.13`
- `neural_network_libraries 1.14`
- `neural_network_libraries 1.15`
- `neural_network_libraries 1.16`
- `neural_network_libraries 1.17`
- `neural_network_libraries 1.18`
- `neural_network_libraries 1.19`
- `neural_network_libraries 1.20`
- `neural_network_libraries 1.21`
- `neural_network_libraries 1.22`
- `neural_network_libraries 1.23`
- `neural_network_libraries 1.24`
- `neural_network_libraries 1.25`
- `neural_network_libraries 1.26`
- `neural_network_libraries 1.27`
- `neural_network_libraries 1.28`
- `neural_network_libraries 1.29`
- `neural_network_libraries 1.30`
- `neural_network_libraries 1.31`
- `neural_network_libraries 1.32`
- `neural_network_libraries 1.33`
- `neural_network_libraries 1.34`
- `neural_network_libraries 1.35`
- `neural_network_libraries 1.36`
- `neural_network_libraries 1.37`
- `neural_network_libraries 1.38`
- `neural_network_libraries 1.39.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.