CVE-2026-27167
Gradio: Mocked OAuth Login Exposes Server Credentials and Uses Hardcoded Session Secret
描述
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 visits `/login/huggingface`, the server retrieves its own Hugging Face access token via `huggingface_hub.get_token()` and stores it in the visitor's session cookie. If the application is network-accessible, any remote attacker can trigger this flow to steal the server owner's HF token. The session cookie is signed with a hardcoded secret derived from the string `"-v4"`, making the payload trivially decodable. Version 6.6.0 fixes the issue.
如何修補 CVE-2026-27167
要修補 CVE-2026-27167,請將受影響套件升級到下列已修補版本。
- —升級至 6.6.0 或更新版本
- —升級至 6.6.0 或更新版本
CVE-2026-27167 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 4.16.0, < 6.6.0
- >= 4.16.0, < 6.6.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | NONE0.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N |