CVE-2026-74241 Quay: ldap referral filter injection in quay external ldap authentication

A flaw was found in Red Hat Quay's external Lightweight Directory Access Protocol LDAP authentication handling. When an LDAP referral is returned during authentication, the system does not properly escape the username input. This allows an attacker to inject LDAP filter metacharacters, enabling...

CVE-2026-74241

Summary: CVE-2026-74241 affects Red Hat Quay’s external LDAP authentication. When LDAP referrals are returned during authentication, the username input isn’t properly escaped, allowing an attacker to inject LDAP filter metacharacters and perform user-existence oracle checks at the referral DN. Th...