CVE-2026-79720: Netron Reflected XSS Vulnerability Leading to Potential Remote Code Execution
Summary
CVE-2026-79720: Reflected XSS in Netron versions. Affects netron versions < 9.1.3. Fixed in 9.1.3. How to fix ↓
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Background
Netron is a popular open-source tool used for visualizing machine learning models. It supports various model formats and provides a user-friendly interface for inspecting model architectures. However, versions up to 9.1.2 are vulnerable to a reflected cross-site scripting (XSS) attack due to unsanitized node names, which can lead to serious security risks.
Vulnerability Detail
The vulnerability arises from the handling of node names within the Netron application. Unsanitized input allows an attacker to inject malicious scripts, which can be executed in the context of the user's browser. This could enable the attacker to hide certain nodes, perform port scanning, or exploit a Chrome n-day vulnerability to achieve remote code execution. The implications of this vulnerability are significant, as it could compromise the integrity and confidentiality of user data.
How To Fix
Latest published version: 9.3.2 as of 23 Oct 2026
pip install --upgrade "netron==9.3.2"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
9.1.3
This is the first release that contains the fix.
pip install --upgrade "netron==9.1.3"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using node names that contain special characters or scripts until the package is updated. Additionally, running the application in a controlled environment with limited access can help mitigate risks.
Conclusion
The reflected XSS vulnerability in Netron versions up to 9.1.2 poses significant security risks, including the potential for remote code execution. Users are strongly advised to update to version 9.1.3 or later to mitigate these risks. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
The CVSS score for this vulnerability is 5.0, indicating a medium severity level.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
The risks include potential remote code execution, data compromise, and unauthorized access to sensitive information.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just the Pipfile.lock.
If an immediate update is not possible, consider implementing temporary workarounds such as restricting access or sanitizing inputs.
References
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