Is CVE-2026-116104 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116104 being exploited in the wild.

How severe is CVE-2026-116104?

Medium severity, with a CVSS score of 6.3, published 26 October 2026.

Which products and versions are affected?

Sony Neural Network Libraries up to 1.39.0.

Is there a fix for CVE-2026-116104?

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-2026-116104 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-116104?

Check whether you run Sony Neural Network Libraries 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.

CVE-2026-116104: Sony Neural Network Libraries code injection in NNP Converter

CVE-2026-116104 · Severity: medium · CVSS 6.3 · Published 2026-10-26

Sony Neural Network Libraries is a machine learning framework used to build and convert neural network models. A code injection vulnerability in its NNP Converter component allows attackers to execute arbitrary commands when converting a specially crafted model file. Since the product is no longer supported, organizations using it face ongoing risk from this publicly disclosed flaw.

Vendors: Sony.

Quick answers

Is CVE-2026-116104 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116104 being exploited in the wild.
How severe is CVE-2026-116104?: Medium severity, with a CVSS score of 6.3, published 26 October 2026.
Which products and versions are affected?: Sony Neural Network Libraries up to 1.39.0.
Is there a fix for CVE-2026-116104?: 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-2026-116104 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-116104?: Check whether you run Sony Neural Network Libraries 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

A code injection vulnerability exists in the NNP Converter (python/src/nnabla/utils/converter/utils.py) where the attacker-controlled function.type field from an NNP model file is concatenated into Python eval() calls during the nnabla_cli convert command. A duplicate-network bypass allows malicious function.type values to reach eval() despite version validation of a separate copy, leading to arbitrary command execution. The vulnerability requires a user to convert an attacker-supplied NNP model file and is triggered remotely via the conversion operation.

Affected products

Sony Neural Network Libraries up to 1.39.0

Timeline

2026-10-26: disclosed

References

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