{"schema_version": "1.7.0", "id": "RLSA-2026:64791", "modified": "2026-09-09T06:12:28.088704Z", "published": "2026-09-09T06:01:32.269149Z", "upstream": ["CVE-2026-18355", "CVE-2026-18453", "CVE-2026-18922", "CVE-2026-76560"], "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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "389-ds-base", "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"}}]}], "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"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:64791"}}