CVE-2026-11770

A flaw was found in 389 Directory Server. An unauthenticated remote attacker can inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler performs the search against cn=config with elevated replication plugin privileges and returns a boolean match result, the attacker can extract sensitive server configuration metadata, including replication bind DNs and password storage scheme information.

A Moderate impact information disclosure flaw was found in 389 Directory Server. An unauthenticated remote attacker can exploit an LDAP filter injection vulnerability in the CleanAllRUV status-check extended operation. Red Hat products with nsslapd-allow-anonymous-access enabled by default are particularly susceptible.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Set nsslapd-allow-anonymous-access to rootdse or off. Restrict LDAP ports to trusted networks. Monitor for extop OID 2.16.840.1.113730.3.6.8. Use strong replication manager passwords.