Inefficient Regular Expression Complexity in axios/axios

The axios library contains a regex pattern that becomes very slow when processing certain types of input, allowing attackers to cause performance problems or denial of service by sending specially crafted requests.

axios contains an inefficient regular expression (ReDoS vulnerability) in URL parsing that exhibits exponential backtracking on malformed input. An attacker can exploit this by providing a specially crafted URL string, causing the application to hang or consume excessive CPU resources without requiring authentication.