We are using Auth0 as a SAML provider to integrate with the 3rd party service for sign-in.
We have been using it for a few months without any problems, but about 3 weeks ago, we started getting an error that the SAML Assertion signature of Auth0 is invalid and sign-in fails.
- No changes have been made to the settings for both Auth0 and other services.
- The majority of users are still able to use the service and only a small number of users are facing the problem.
- Once a user fails to validate a signature, it continues to fail.
- Users who have successfully signed in in the past are now facing this problem.
Is there any way to check if there is something wrong with the SAML Assertion signature on the Auth0 side?