CVE-2026-112880 CRLF injection in Proxy-Authorization header built from proxy_auth_fun in hackney

Improper Neutralization of CRLF Sequences in HTTP Headers 'HTTP Request/Response Splitting' vulnerability in hackneyhttpconnect in benoitc hackney allows HTTP Request Splitting via the value a proxyauthfun callback returns. After a 407 response from an HTTP CONNECT proxy,...