A privilege escalation flaw from host to domain administrator was found in FreeIPA. This vulnerability is similar to CVE-2025-4404, where it fails to validate the uniqueness of the krbCanonicalName. While the previously released version added validations for the admin@REALM credential, FreeIPA still does not validate the root@REALM canonical name, which can also be used as the realm administrator's name. This flaw allows an attacker to perform administrative tasks over the REALM, leading to access to sensitive data and sensitive data exfiltration.
FreeIPA does not verify the uniqueness of the krbCanonicalName attribute for the root@REALM value. The previous patch related to CVE-2025-4404 added validation only for admin@REALM, omitting root@REALM, which can also serve as a REALM administrator name. An attacker with host-level access can register or modify krbCanonicalName to root@REALM and subsequently perform administrative operations within the entire REALM.
An attacker can obtain domain administrator (REALM) privileges, enabling them to perform arbitrary administrative tasks, access sensitive data, and exfiltrate it.
Apply patches available from the vendor according to references — updates described in Red Hat errata: RHSA-2025:17084, RHSA-2025:17085, RHSA-2025:17086, RHSA-2025:17087, RHSA-2025:17088
FreeIPA — versions indicated in vendor references (Red Hat errata RHSA-2025:17084 – RHSA-2025:17088)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H