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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
sony:neural network libraries
References 5
https://vuldb.com/vuln/426172
VDB-426172 | Sony Neural Network Libraries NNP Converter utils.py func_set_nnabla_version_decorate code injection
https://vuldb.com/vuln/426172/cti
VDB-426172 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/cve/CVE-2026-116104
CVE-2026-116104 | CVE Analysis and Report
https://vuldb.com/submit/1003040
Submit #1003040 | Sony NNabla 1.39.0 (final release; commit cbf0545b verified) Code Injection
https://github.com/3em0/cve_repo/blob/main/2026/Sony-NNabla-1.39.0-Code-Injecti…
NVD