The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 federation protocol. The module grants access based on the attributes received in assertions generated by an IdP server. Security Fix: * mod_auth_mellon: authentication bypass in ECP flow For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.