Errata patches for OpenBGPD have been released for OpenBSD 6.7 and 6.8. In bgpd, the roa-set parser could leak memory.
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/errata67.html https://www.openbsd.org/errata68.html