Configure JWT authenticator not to logging sensitive data

[StanislavStefanov]

Preflight checklist

• I could not find a solution in the existing issues, docs, nor discussions.
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Describe your problem

If the authenticator fails to validate the provided JWT token the returned error is enriched with the contents of the jwt claims from the token. The claims contain user personal data such as names and email address. According to our policy such information is treated as sensitive data and we should not log it. We need a way to configure whether the error should be enriched or not.

Describe your ideal solution

The suggested approach is to have a new configuration value of type bool within AuthenticatorOAuth2JWTConfiguration which would tell Oathkeeper to enrich the errors with the data from the jwt claims or not. The default value of the new configuration can be 'true' in order to keep the current behaviour and in cases where the enrichement of the message is not desired it could be overridden to 'false'.

Workarounds or alternatives

Based on the current approach I couldnt think of other approach that can keep the current default behaviour and provide the new functionality

Version

Currently we use v0.38.25-beta.1, but will be upgrading to the latest version

Additional Context

No response

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[benfielden-onx]

We just discovered this in our logs as well as we flipped on our implementation and then started getting compliance alerts for our logs containing email and names.

@StanislavStefanov Did you ever find a workaround?

[StanislavStefanov]

@benfielden-onx This issue is becoming increasingly important for our project but unfortunately we haven't found any workaround yet. It is a pity that such a small change requires so much time to be implemented. It looks like it is up to us, the users of Oathkeeper to contribute this feature.