CyberRota Analysis
AI-GeneratedThe vulnerability affects Open WebUI versions 0.8.0 to 0.11.0, where the OAuth token exchange mechanism improperly validates access tokens, allowing unauthorized users to gain access to sessions by using tokens from any client registered with the same provider. This could lead to unauthorized access to sensitive information and functionalities within the platform. Organizations using affected versions should prioritize patching to version 0.11.0 to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLE_OAUTH_TOKEN_EXCHANGE=True, /oauth/{provider}/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which OAuth client the token was issued to. Anyone holding an access token minted for any client registered with the same provider could exchange it for an Open WebUI session as that token user, including applications the operator does not control and has never authorized. This issue is fixed in 0.11.0.