High [CVE-2026-14474] sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation

A flaw was found in SSSD's LDAP sudo provider. When the ldap_sudo_search_base option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects.

An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo privileges on all SSSD-enrolled hosts. Red Hat has rated this as Important because the attack requires only low-privilege delegated LDAP write access to any subtree, which is a common delegation pattern in enterprise environments.

The default ldap_sudo_search_base configuration searches the entire directory tree, allowing sudo rule injection from outside the intended sudoers container. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-1188.

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 20 more.