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.
According to the upstream info (https://logbot.thereisonlyxul.org/seamonkey/20250606#c25820): > rust-url is not used for normal url parsing. Only in some internal MozUrl stuff. So SeaMonkey is not affected, at least for now.