Google Gemini Live API Flaw Allows RCE via Unconstrained Ephemeral Tokens

Gbhackers •Divya • July 7, 2026

A significant security vulnerability in Google’s Gemini Live API has exposed applications to remote code execution (RCE) due to misconfigured ephemeral tokens. This flaw allows attackers to inject client-controlled setup frames and execute arbitrary code within AI voice sessions. The issue stems from the improper use of the “Constrained” WebSocket endpoint, particularly when developers neglect […]

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Google Gemini Live API Flaw Enables Remote Code Execution via Token Misconfiguration A significant security flaw in Google’s Gemini Live API has been identified, allowing attackers to exploit misconfigured ephemeral tokens for remote code execution (RCE). This vulnerability enables unauthorized code execution within browser-based AI voice sessions, impacting applications that utilize the Gemini Live API. Security researcher Alvin Ferdiansyah highlighted that the issue arises from improper implementation of the 'Constrained' WebSocket endpoint by developers. The flaw can lead to the injection of client-controlled setup frames, posing a risk to numerous applications relying on this API. As of now, no specific CVE has been assigned, and developers are urged to review their implementations to mitigate potential exploitation. 2 sources 62

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Google Gemini Live API Flaw Allows RCE via Unconstrained Ephemeral Tokens

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