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.

High
CVSS
7.5
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0082
57th percentile

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

ProductFixed inFixReleased
Linux
389-ds · sles 15.6 2.2.10~git229.1fa7ffdb4-150600.8.29.1 SUSE-SU-2026:2418-1 Jun 16, 2026
389-ds · sles 15.7 2.7.0~git193.9ab79d496-150700.3.16.1 SUSE-SU-2026:2419-1 Jun 16, 2026
389-ds-base · RHEL 10 3.0.6-18.el10_0 RHSA-2026:26457 May 20, 2026
389-ds-base · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
389-ds-base · RHEL 9 0:2.8.0-7.el9_8 RHSA-2026:26455 Jun 24, 2026
389-ds-base · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
389-ds-base · almalinux 9 2.8.0-7.el9_8 ALSA-2026:26455 Jun 17, 2026
389-ds-base · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
389-ds-base · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
389-ds-base · ol 9 0:2.8.0-7.el9_8 ELSA-2026-26455 Jun 23, 2026
389-ds-base · rocky 10 0:3.2.0-7.el10_2 RLSA-2026:26456 Jun 19, 2026
389-ds-base · rocky 8 0:1.4.3.39-24.module+el8.10.0+40214+a8ec6bf9 RLSA-2026:26459 Jun 19, 2026
389-ds-base · rocky 9 0:2.8.0-7.el9_8 RLSA-2026:26455 Jun 17, 2026
389-ds-base-bdb · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
389-ds-base-devel · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
389-ds-base-devel · RHEL 9 0:2.8.0-7.el9_8 RHSA-2026:26455 Jun 24, 2026
389-ds-base-devel · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
389-ds-base-devel · almalinux 9 2.8.0-7.el9_8 ALSA-2026:26455 Jun 17, 2026
389-ds-base-devel · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
389-ds-base-devel · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
389-ds-base-devel · ol 9 0:2.8.0-7.el9_8 ELSA-2026-26455 Jun 23, 2026
389-ds-base-legacy-tools · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
389-ds-base-legacy-tools · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
389-ds-base-legacy-tools · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
389-ds-base-libs · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
389-ds-base-libs · RHEL 9 0:2.8.0-7.el9_8 RHSA-2026:26455 Jun 24, 2026
389-ds-base-libs · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
389-ds-base-libs · almalinux 9 2.8.0-7.el9_8 ALSA-2026:26455 Jun 17, 2026
389-ds-base-libs · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
389-ds-base-libs · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
389-ds-base-libs · ol 9 0:2.8.0-7.el9_8 ELSA-2026-26455 Jun 23, 2026
389-ds-base-snmp · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
389-ds-base-snmp · RHEL 9 0:2.8.0-7.el9_8 RHSA-2026:26455 Jun 24, 2026
389-ds-base-snmp · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
389-ds-base-snmp · almalinux 9 2.8.0-7.el9_8 ALSA-2026:26455 Jun 17, 2026
389-ds-base-snmp · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
389-ds-base-snmp · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
389-ds-base-snmp · ol 9 0:2.8.0-7.el9_8 ELSA-2026-26455 Jun 23, 2026
python3-lib389 · RHEL 8 0:1.4.3.39-24.module+el8.10.0+24340+7270ac72 RHSA-2026:26459 Jun 24, 2026
python3-lib389 · RHEL 9 0:2.8.0-7.el9_8 RHSA-2026:26455 Jun 24, 2026
python3-lib389 · almalinux 8 1.4.3.39-24.module_el8.10.0+4196+be88fbc7 ALSA-2026:26459 Jun 17, 2026
python3-lib389 · almalinux 9 2.8.0-7.el9_8 ALSA-2026:26455 Jun 17, 2026
python3-lib389 · ol 10 0:3.2.0-8.el10_2 ELSA-2026-26456 Jul 21, 2026
python3-lib389 · ol 8 0:1.4.3.39-24.module+el8.10.0+90914+745232ac ELSA-2026-26459 Jun 18, 2026
python3-lib389 · ol 9 0:2.8.0-7.el9_8 ELSA-2026-26455 Jun 23, 2026

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