| tiêu đề | YunaiV yudao-cloud up to 2026.01 Authentication Bypass by Primary Weakness |
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| Mô tả | A critical authentication bypass vulnerability exists in yudao-cloud `OAuth2TokenServiceImpl.java`. The vulnerability allows an attacker to use a `refresh_token` directly as an `access_token` to authenticate API requests, effectively bypassing the intended access token authentication mechanism.
In the OAuth 2.0 authentication framework, `access_token` and `refresh_token` serve different purposes:
- **`access_token`**: Short-lived token used for API authentication
- **`refresh_token`**: Long-lived token used to obtain new access tokens
This vulnerability breaks the security separation between these two token types. |
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| Nguồn | ⚠️ https://github.com/9str0IL/CVE/issues/1 |
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| Người dùng | 9str0il (UID 97218) |
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| Đệ trình | 09/04/2026 11:11 (cách đây 2 các tháng) |
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| Kiểm duyệt | 02/05/2026 10:39 (23 days later) |
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| Trạng thái | được chấp nhận |
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| Mục VulDB | 360832 [YunaiV yudao-cloud đến 2026.01 OAuth2TokenServiceImpl.java getAccessToken xác thực yếu] |
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| điểm | 20 |
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