AlmaLinux alert ALSA-2026:26455 (389-ds-base)

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[Announce] [Security Advisory] ALSA-2026:26455: 389-ds-base security, bug fix, and enhancement update (Important)
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Thu, 02 Jul 2026 14:14:38 +0000
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<0100019f232e8466-95a5100a-40c4-4f61-829d-5f8083b0f0f0-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-07-02

Summary:

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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-26455.html

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AlmaLinux Team
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