Errata patches for su have been released for OpenBSD 6.5 and 6.6.
A user can log in with a different user's login class.
Binary updates for the amd64, i386, and arm64 platforms are available
via the syspatch utility. Source code patches can be found on the
respective errata page:
https://www.openbsd.org/errata65.html
https://www.openbsd.org/errata66.html
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)