More information about this security flaw is available in the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=2369303 Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
> In applications using idna (but not in idna itself) this may be able to lead to privilege escalation when host name comparison is part of a privilege check The Rust toolchain does not use any host names or URLs for privilege separation, so the vulnerability doesn't apply.