Is it possible to use regex paths in authorizationPolicies?

According to Istio / Authorization Policy, we can config ‘/info*’ to represent paths with prefix ‘/info’, and ‘*info’ to represent paths with suffix ‘info’. However, what can be configured to match the condition “paths containing info”.
I notice that Istio use the function to construct the StringMatcher. Is there a way to use regex path? Or using envoyfilters is the only way?

Besides func StringMatcherWithPrefix() mentioned in the question,
Istio authz also uses StringMatcherRegex to support regex: Can you try a regex path in Istio authz and update the thread here with your finding?