Hello everyone,
I have been able to successfully log most users using Auth0 but this morning I got this error:
"error": {
"message": "Unsupported response type: ZhAk",
"oauthError": "unsupported_response_type",
"type": "oauth-authorization"
}
It only happened for a specific user so far and I haven’t been able to find info on why it happened or how to fix it. Does anyone know anything about this? There’s a topic from 2022 with the same problem reported but still no response to date.
Thanks
Hi @tomas.sequeira
Welcome to the Auth0 Community!
I’ve checked your tenant log, and it looks like an automated bot attempted or hack attempt. In the qs object, you can see all the parameters that this person or bot used. One of them is “response_type”: “ZhAk” and that’s why the “Unsupported response type: ZhAk” error is triggered. You can read information about this specific parameter here: OAuth 2.0 Authorization Framework. Please check the user’s device for malware.
Additional informations: Censys scanner causing error logs: "Missing required parameter: response_type"
Thanks
Dawid
Thanks for the answer Dawid. Unfortunately, more than one person already reported this error and we know for sure that they aren’t “hackers or bots” since one of them is a relative of mine. Is it possible that there’s still something strange happening?
Thanks.