CVE-2026-107858

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The /run_live WebSocket endpoint accepts connections from any origin by default (hardcoded via setAllowedOrigins(\"*\") in versions 0.1.0 through 1.5.0, and defaulting to * via adk.web.cors.origins in versions 1.6.0 through 1.12.0), and since version 0.4.0 the REST API returns Access-Control-Allow-Origin: * by default. Because the server has no authentication and requests originate from the developer's browser (so binding to localhost does not prevent exploitation), a cross-origin page can send messages to the agent (triggering registered tools), stream agent responses, and list, read, create, or delete sessions and artifacts. In versions 1.6.0 through 1.12.0, users can mitigate the issue by setting the adk.web.cors.origins property to an explicit allowlist of trusted origins (such as http://localhost:8000). 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{"created": "2026-10-23T06:45:07.446215+00:00", "updated": "2026-10-23T06:45:07.446228+00:00", "vendors": []}