CVE-2026-27167

Gradio, in versions 4.16.0 through 6.5.x, running outside Hugging Face Spaces enables mocked OAuth routes when OAuth components are used. Visiting /login/huggingface causes the server to fetch its HF token via hugggingface_hub.get_token() and store it in the visitor’s session cookie, which is sig...

CVE-2026-27167 Gradio: Mocked OAuth Login Exposes Server Credentials and Uses Hardcoded Session Secret

Gradio is an open-source Python package designed for quick prototyping. Starting in version 4.16.0 and prior to version 6.6.0, Gradio applications running outside of Hugging Face Spaces automatically enable "mocked" OAuth routes when OAuth components e.g. gr.LoginButton are used. When a user visi...