gemini-cli - 💡(How to fix) Fix Potential XSS in DevTools Log Rendering [1 comments, 2 participants]

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google-gemini/gemini-cli#26828Fetched 2026-05-11 03:27:17
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What happened?

The DevTools server sends raw log data to the client, which includes arbitrary strings from network requests and console logs. If the React client does not sanitize this data, it's vulnerable to XSS.

What did you expect to happen?

The client-side rendering logic should treat all log data as untrusted and use proper escaping or sanitization.

Client Information

<details> <summary>Client Information</summary>

OS: linux Date: Sunday, May 10, 2026 Gemini CLI: 0.42.0-nightly

</details>

Login information

Automated audit with Gemini CLI.

Anything else we need to know?

File: packages/devtools/src/index.ts. An agent interacting with a malicious website or reading a malicious file could trigger XSS in the developer's DevTools UI.

Severity: Medium Area: area/security

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