gemini-cli - 💡(How to fix) Fix Weak encryption key derivation in FileKeychain [1 comments, 2 participants]

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google-gemini/gemini-cli#26781Fetched 2026-05-11 03:28:33
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What happened?

The encryption key for the fallback credential storage is derived from easily obtainable local system information (hostname and username).

What did you expect to happen?

A more secure key derivation function should be used, ideally involving a user-provided passphrase or a machine-specific secret not easily guessable by other local users.

Client Information

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

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

</details>

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Automated audit with Gemini CLI.

Anything else we need to know?

File: packages/core/src/services/fileKeychain.ts, Lines 26-27. Hostname and username are not secret and can be retrieved by any local process.

Severity: High Area: area/security

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gemini-cli - 💡(How to fix) Fix Weak encryption key derivation in FileKeychain [1 comments, 2 participants]