No 1Password data is put at any risk through the bug reported about CloudFlare. 1Password does not depend on the secrecy of SSL/TLS for your security. No secrets are transmitted between 1Password clients and 1Password.com when you sign in and use the service. This means that users of 1Password do not need to change their Master Passwords. We will provide a more detailed description in the coming days of the Cloudflare security bug and how it (doesnt) affect 1Password.”]
Source: https://blog.1password.com/three-layers-of-encryption-keeps-you-safe-when-ssl/tls-fails/