CVE-2026-74241
MEDIUM
NVD
CVSS Score
4.8
Severity
MEDIUM
Published
Aug 14, 2026
Vendor
unknown
Description
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 user-existence oracle attacks at the referral Directory Name (DN). This could also potentially influence which DN is used for password binding in multi-domain Active Directory environments.