Quick answers
- Is CVE-2026-79719 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-79719 being exploited in the wild.
- How severe is CVE-2026-79719?
- Low severity, with a CVSS score of 3.1, published 27 August 2026.
- Which products and versions are affected?
- netron (PyPI) ECOSYSTEM:introduced=0,fixed=9.1.3.
- Is there a fix for CVE-2026-79719?
- Yes. netron (PyPI): upgrade to 9.1.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-79719 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-79719?
- Check whether you run netron (PyPI) 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.
How to fix
- netron (PyPI): upgrade to 9.1.3 or later
pip install "netron>=9.1.3"
Technical details
Netron contains a reflected cross-site scripting (XSS) vulnerability caused by rendering user-controlled model fields (node names, input/output descriptions) directly into the DOM via innerHTML without HTML escaping. The vulnerability is triggered when a user opens a crafted model file and clicks on a node, which populates the sidebar. While the application implements a Content Security Policy (CSP) blocking inline scripts, it does not restrict iframe framing, allowing attackers to bypass restrictions. In the Electron-based desktop application (shipping Chrome 148), this XSS can be chained with known V8 vulnerabilities to achieve remote code execution. The vulnerability affects all versions up to and including 9.1.2; a patch was released in version 9.1.3.
Affected products
- Lutz Roeder Netron <=9.1.2
Identifiers
- CVE-2026-79719
- PYSEC-2026-4002
Timeline
- 2026-08-27: disclosed
- 2026-08-27: patched: Fixed in version 9.1.3