RLSA-2026:64784: 389-ds-base security update

RLSA-2026:64784, released September 9, 2026, fixes 5 CVEs in 389-ds-base (version 0:2.8.0-10.el9_8). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

3 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0085

58th percentile

Priority of the 5 CVEs

Patch now 0
                                Urgent 3
                                High 2
                                Routine 0

Fixed package versions

Product	Release	Fixed in
389-ds-base	rocky 9	0:2.8.0-10.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-78701	389-ds-base: Resolves: RHEL-247865 - 389-ds-base: CVE-2026-11610 incomplete fix may introduce a connection-stall DoS [rhel-9.8.z]	9.8	0.0078	None reported
Urgent	CVE-2026-18922	389-ds: stale identity carried in a Cyrus SASL auxiliary property during SASL PLAIN authentication allows	9.8	0.0056	None reported
Urgent	CVE-2026-76560	389-ds-base: Resolves: RHEL-245374 - 389-ds-base: anonymous LDAP client can defeat SELFDN ACI bind-rule checks via empty bind DN [...	9.8	0.0056	None reported
High	CVE-2026-18453	389-ds: pre-authentication NULL pointer dereference via paged results and	9.8	0.0085	None reported
High	CVE-2026-18355	389-ds: heap buffer overflow in the SASL I/O layer allows a remote authenticated attacker to cause a denial of	9.8	0.0084	None reported

Also fixes CVE-2026-78701

ALSA-2026:64784
389-ds-base, 389-ds-base-devel, 389-ds-base-libs and 2 more on almalinux 9
ALSA-2026:64785
389-ds-base, 389-ds-base-bdb, 389-ds-base-devel and 3 more on almalinux 10
RHSA-2026:64784
389-ds-base, 389-ds-base-devel, 389-ds-base-libs and 2 more on RHEL 9
RLSA-2026:64785
389-ds-base on rocky 10
ELSA-2026-64784-0
389-ds-base, 389-ds-base-devel, 389-ds-base-libs and 2 more on ol 9
ELSA-2026-64785-0
389-ds-base, 389-ds-base-bdb, 389-ds-base-devel and 3 more on ol 10
RHSA-2026:64785
389-ds-base on RHEL 10

Vendor advisory

https://errata.rockylinux.org/RLSA-2026:64784

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