Detections
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AlmaLinux 8 : 389-ds:1.4 (ALSA-2026:26459)

high Nessus Plugin ID 321930

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:26459 advisory.

 * 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)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/8/ALSA-2026-26459.html

https://access.redhat.com/errata/RHSA-2026:26459

Plugin Details

Severity: High

ID: 321930

File Name: alma_linux_ALSA-2026-26459.nasl

Version: 1.1

Type: Local

Published: 6/22/2026

Updated: 6/22/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-9064

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::resilientstorage, p-cpe:/a:alma:linux:389-ds-base-snmp, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:389-ds-base, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::realtime, p-cpe:/a:alma:linux:389-ds-base-devel, cpe:/o:alma:linux:8::baseos, p-cpe:/a:alma:linux:389-ds-base-legacy-tools, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:389-ds-base-libs, cpe:/o:alma:linux:8::supplementary, cpe:/o:alma:linux:8::highavailability, p-cpe:/a:alma:linux:python3-lib389, cpe:/o:alma:linux:8::powertools

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-9064

CWE: 770

RHSA: 2026:26459