Most latest bugs are reported by syzbot to syzkaller-openbsd-bugs mailing list and are listed on the dashboard.
Newer bugs comes first.
shmat: propagate error instead of panicking on allocation failure
pf(4): incorrect handling of overlapping fragments ERRATA-68-014
pf(4): pfsync_state_import()
cannot be called with the pf state lock held
sosplice(9): stack overflow while handling broadcast packets
unveil: do not increment ps_uvncount
more than once per unveiled path
ip6(4): don't use the flow of the first fragment to store ECN data
recv: unexpected mbuf queue growth while sleeping ERRATA-64-009
getsockopt: errorneous switch fall through in rip_usrreq()
affecting many socket related syscalls
shutdown: integer overflow in unp_internalize()
ERRATA-64-006
poll: execution of address 0x0
caused by console redirection
open: NULL pointer dereference while operating on cloned device
fchown: NULL pointer dereference while operating on cloned device
ftruncate: NULL pointer dereference while operating on cloned device