Python regex can be used to validate an IP address. The following example code block uses regex to validate an IP address: ...

# is a valid IPv4 address or IPv6 address or neither. # IPv4 addresses are canonically represented in dot-decimal notation, # which consists of four decimal numbers, each ranging from 0 to 255, ...

The Python standard library ipaddress also suffers from the critical IP address validation vulnerability identical to the flaw that was reported in the "netmask" library earlier this year. The ...