This was fixed by
2d26cf4aed90a77ac5e93ddec29770756027b788
--
Karl Williamson
---
via perlbug: queue: perl5 status: open
https://rt.perl.org/Ticket/Display.html?id=134134
[perl #134134] regcomp: heap-buffer-overflow read numeric=(perl-5.30.0)
by Karl Williamson via RT