{"id":"RLSA-2026:64791","summary":"Critical: 389-ds:1.4 security, bug fix, and enhancement update","details":"389 Directory Server is an LDAP version 3 (LDAPv3) compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. \n\nSecurity Fix(es):\n\n* 389-ds-base: 389-ds-base: heap buffer overflow via SASL wrapped-record length lower-bound underflow in sasl_io_start_packet() (CVE-2026-18355)\n\n* 389-ds-base: 389-ds-base: pre-authentication NULL pointer dereference via paged results and USE_ONE_BACKEND control in op_shared_search (CVE-2026-18453)\n\n* 389-ds-base: 389-ds-base: SASL PLAIN authentication allows privilege escalation to Directory Manager via stale identity in Cyrus SASL auxiliary property (CVE-2026-18922)\n\n* 389-ds-base: 389-ds: anonymous LDAP client can defeat SELFDN ACI bind-rule checks via empty bind DN (CVE-2026-76560)\n\nBug Fix(es) and Enhancement(s):\n\n* lib389: set nsDS5ReplicaBindDNGroup before ensure_agreement() [rhel-8.10.z] (JIRA:Rocky Linux-244463)\n\n* fix breaks replication total init when nsDS5ReplicaBindDNGroup is set after agreement creation [rhel-8.10.z] (JIRA:Rocky Linux-248762)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-09-09T06:30:15.359449318Z","published":"2026-09-09T06:01:32.269149Z","upstream":["CVE-2026-18355","CVE-2026-18453","CVE-2026-18922","CVE-2026-76560"],"database_specific":{"source_advisory":"RHSA-2026:64791","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:64791"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2509186"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2509696"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511388"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2519521"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:64791"}],"affected":[{"package":{"name":"389-ds-base","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/389-ds-base?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.3.39-28.module+el8.10.0+40311+cd962df1"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:64791.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}