CVE-2026-43929 ssrfcheck: Server-Side Request Forgery (SSRF) and Incomplete List of Disallowed Inputs

ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address e.g. http://::ffff:127.0.0.1/. The WHATWG URL parser bui...