# CVE-2026-9064: 389-ds-base: 389 Directory Server is an LDAP version 3 (LDAPv3) compliant server CVE-2026-9064 is fixed in 8 products on 1 platform, first by RHSA-2026:26457, released May 20, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-9064 - Priority: High - CVSS: 7.5 (important) - EPSS: 0.0082 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 20, 2026 ## Description 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. Security Fix(es): * 389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS) (CVE-2026-9064) Bug Fix(es) and Enhancement(s): * Getting "build_candidate_list - Database error 11" messages after migrating to LMDB. [almalinux-9.8.z] (JIRA:AlmaLinux-152356) * Web console doesn't show the sub suffix of ou=foo,ou=people,dc=example,dc=com. [almalinux-9.8.z] (JIRA:AlmaLinux-168967) * DS 12 does not handle escape char in bind user [almalinux-9.8.z] (JIRA:AlmaLinux-170269) * [RFE] Add OS-level thread names to all server threads [almalinux-9.8.z] (JIRA:AlmaLinux-174524) * Online export is failing when using the option "-s" [almalinux-9.8.z] (JIRA:AlmaLinux-180716) * Server shutdown during online reindex may lead to data loss [almalinux-9.8.z] (JIRA:AlmaLinux-183895) For 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | 389-ds sles 15.6 | 2.2.10~git229.1fa7ffdb4-150600.8.29.1 | [SUSE-SU-2026:2418-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2418-1.md) | Jun 16, 2026 | | Linux | 389-ds sles 15.7 | 2.7.0~git193.9ab79d496-150700.3.16.1 | [SUSE-SU-2026:2419-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2419-1.md) | Jun 16, 2026 | | Linux | 389-ds-base RHEL 10 | 3.0.6-18.el10_0 | [RHSA-2026:26457](https://patchblox.com/security/data/fix/linux/rhsa-2026-26457.md) | May 20, 2026 | | Linux | 389-ds-base RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | 389-ds-base RHEL 9 | 0:2.8.0-7.el9_8 | [RHSA-2026:26455](https://patchblox.com/security/data/fix/linux/rhsa-2026-26455.md) | Jun 24, 2026 | | Linux | 389-ds-base almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | 389-ds-base almalinux 9 | 2.8.0-7.el9_8 | [ALSA-2026:26455](https://patchblox.com/security/data/fix/linux/alsa-2026-26455.md) | Jun 17, 2026 | | Linux | 389-ds-base ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | 389-ds-base ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | 389-ds-base ol 9 | 0:2.8.0-7.el9_8 | [ELSA-2026-26455](https://patchblox.com/security/data/fix/linux/elsa-2026-26455.md) | Jun 23, 2026 | | Linux | 389-ds-base rocky 10 | 0:3.2.0-7.el10_2 | [RLSA-2026:26456](https://patchblox.com/security/data/fix/linux/rlsa-2026-26456.md) | Jun 19, 2026 | | Linux | 389-ds-base rocky 8 | 0:1.4.3.39-24.module+el8.10.0+40214+a8ec6bf9 | [RLSA-2026:26459](https://patchblox.com/security/data/fix/linux/rlsa-2026-26459.md) | Jun 19, 2026 | | Linux | 389-ds-base rocky 9 | 0:2.8.0-7.el9_8 | [RLSA-2026:26455](https://patchblox.com/security/data/fix/linux/rlsa-2026-26455.md) | Jun 17, 2026 | | Linux | 389-ds-base-bdb ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | 389-ds-base-devel RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | 389-ds-base-devel RHEL 9 | 0:2.8.0-7.el9_8 | [RHSA-2026:26455](https://patchblox.com/security/data/fix/linux/rhsa-2026-26455.md) | Jun 24, 2026 | | Linux | 389-ds-base-devel almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | 389-ds-base-devel almalinux 9 | 2.8.0-7.el9_8 | [ALSA-2026:26455](https://patchblox.com/security/data/fix/linux/alsa-2026-26455.md) | Jun 17, 2026 | | Linux | 389-ds-base-devel ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | 389-ds-base-devel ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | 389-ds-base-devel ol 9 | 0:2.8.0-7.el9_8 | [ELSA-2026-26455](https://patchblox.com/security/data/fix/linux/elsa-2026-26455.md) | Jun 23, 2026 | | Linux | 389-ds-base-legacy-tools RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | 389-ds-base-legacy-tools almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | 389-ds-base-legacy-tools ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | 389-ds-base-libs RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | 389-ds-base-libs RHEL 9 | 0:2.8.0-7.el9_8 | [RHSA-2026:26455](https://patchblox.com/security/data/fix/linux/rhsa-2026-26455.md) | Jun 24, 2026 | | Linux | 389-ds-base-libs almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | 389-ds-base-libs almalinux 9 | 2.8.0-7.el9_8 | [ALSA-2026:26455](https://patchblox.com/security/data/fix/linux/alsa-2026-26455.md) | Jun 17, 2026 | | Linux | 389-ds-base-libs ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | 389-ds-base-libs ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | 389-ds-base-libs ol 9 | 0:2.8.0-7.el9_8 | [ELSA-2026-26455](https://patchblox.com/security/data/fix/linux/elsa-2026-26455.md) | Jun 23, 2026 | | Linux | 389-ds-base-snmp RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | 389-ds-base-snmp RHEL 9 | 0:2.8.0-7.el9_8 | [RHSA-2026:26455](https://patchblox.com/security/data/fix/linux/rhsa-2026-26455.md) | Jun 24, 2026 | | Linux | 389-ds-base-snmp almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | 389-ds-base-snmp almalinux 9 | 2.8.0-7.el9_8 | [ALSA-2026:26455](https://patchblox.com/security/data/fix/linux/alsa-2026-26455.md) | Jun 17, 2026 | | Linux | 389-ds-base-snmp ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | 389-ds-base-snmp ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | 389-ds-base-snmp ol 9 | 0:2.8.0-7.el9_8 | [ELSA-2026-26455](https://patchblox.com/security/data/fix/linux/elsa-2026-26455.md) | Jun 23, 2026 | | Linux | python3-lib389 RHEL 8 | 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 | [RHSA-2026:26459](https://patchblox.com/security/data/fix/linux/rhsa-2026-26459.md) | Jun 24, 2026 | | Linux | python3-lib389 RHEL 9 | 0:2.8.0-7.el9_8 | [RHSA-2026:26455](https://patchblox.com/security/data/fix/linux/rhsa-2026-26455.md) | Jun 24, 2026 | | Linux | python3-lib389 almalinux 8 | 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 | [ALSA-2026:26459](https://patchblox.com/security/data/fix/linux/alsa-2026-26459.md) | Jun 17, 2026 | | Linux | python3-lib389 almalinux 9 | 2.8.0-7.el9_8 | [ALSA-2026:26455](https://patchblox.com/security/data/fix/linux/alsa-2026-26455.md) | Jun 17, 2026 | | Linux | python3-lib389 ol 10 | 0:3.2.0-8.el10_2 | [ELSA-2026-26456](https://patchblox.com/security/data/fix/linux/elsa-2026-26456.md) | Jul 21, 2026 | | Linux | python3-lib389 ol 8 | 0:1.4.3.39-24.module+el8.10.0+90914+745232ac | [ELSA-2026-26459](https://patchblox.com/security/data/fix/linux/elsa-2026-26459.md) | Jun 18, 2026 | | Linux | python3-lib389 ol 9 | 0:2.8.0-7.el9_8 | [ELSA-2026-26455](https://patchblox.com/security/data/fix/linux/elsa-2026-26455.md) | Jun 23, 2026 | --- Data as of 2026-11-08T00:53:09Z UTC. 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