JavaScript execution via unescaped sidebar model fields
Published Aug 27, 2026 · Updated Aug 27, 2026
DOM-based XSS in Lutz Roeder Netron 9.1.2 and earlier allows attackers to run JavaScript when a user opens a crafted model file. Sidebar views assign model-controlled node names and value descriptions directly to innerHTML without escaping, causing Chromium to parse injected markup. Exploitation requires selecting the malicious node; code runs in the renderer and can scan local ports or hide nodes, while host RCE requires a separate Chromium exploit.
Summary
What happened
DOM-based XSS in Lutz Roeder Netron 9.1.2 and earlier allows attackers to run JavaScript when a user opens a crafted model file. Sidebar views assign model-controlled node names and value descriptions directly to innerHTML without escaping, causing Chromium to parse injected markup. Exploitation requires selecting the malicious node; code runs in the renderer and can scan local ports or hide nodes, while host RCE requires a separate Chromium exploit.
The record
- CVE
- CVE-2026-79718
- Published
- Aug 27, 2026
- Updated
- Aug 27, 2026
- Vendor
- Lutz Roeder
- Product
- Netron
- Classifications
- CWE-79, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 27, 2026CVE publishedPublication date reported by the CVE source.
- Aug 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=* <=9.1.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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