Generally speaking, no. Search engines like Google should generally not penalize for being on shared IPs, unless there are many sites that are considered spammy on the IP addresses. Domain factors are generally what is taken into account relative to SEO and how a site ranks in SERPs. If your site has been hacked or has malware on it, then it could impact your SERPs until the problem has been cleaned up.
Still not finding what you need?
The Cloudflare team is here to help. 95% of questions can be answered using the search tool, but if you can’t find what you need, submit a support request.