CakePHP: SmtpTransport vulnerable to CRLF header injection

Impact Custom mail headers added with Message::setHeaders or addHeaders do not have CRLF replaced allowing header injection if user controlled data is added to message headers without stripping CRLF bytes. Patches 5.3.7, 5.2.14, 5.1.9, 4.6.5, 4.5.12 contain fixes for this issue. Workarounds You c...

CVE-2026-77634 CakePHP: SmtpTransport vulnerable to CRLF header injection

CakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders or Message::addHeaders do not have CRLF bytes removed, allowing header injection when user-controlled...