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AlmaLinux 8 : samba (ALSA-2026:22644)

critical Nessus Plugin ID 318398

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:22644 advisory.

 * samba: group policy certificate enrollment uses <http://> without validation (CVE-2026-3012)
 * samba: Samba: Remote Code Execution in printing subsystem via unescaped job description (CVE-2026-4480)
 * samba: Remote Code Execution in SAMR (CVE-2026-4408)

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

Note that Nessus has not tested for these issues 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-2026-22644.html

https://access.redhat.com/errata/RHSA-2026:22644

Plugin Details

Severity: Critical

ID: 318398

File Name: alma_linux_ALSA-2026-22644.nasl

Version: 1.1

Type: Local

Published: 6/3/2026

Updated: 6/3/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-4480

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

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

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

CVSS Score Source: CVE-2026-4408

Vulnerability Information

CPE: p-cpe:/a:alma:linux:samba, p-cpe:/a:alma:linux:python3-samba-test, p-cpe:/a:alma:linux:python3-samba, p-cpe:/a:alma:linux:samba-winbind, p-cpe:/a:alma:linux:samba-usershares, p-cpe:/a:alma:linux:samba-winbind-clients, p-cpe:/a:alma:linux:python3-samba-devel, p-cpe:/a:alma:linux:samba-dcerpc, p-cpe:/a:alma:linux:samba-ldb-ldap-modules, cpe:/o:alma:linux:8::appstream, p-cpe:/a:alma:linux:samba-winexe, p-cpe:/a:alma:linux:samba-common-tools, p-cpe:/a:alma:linux:samba-winbind-modules, p-cpe:/a:alma:linux:samba-krb5-printing, p-cpe:/a:alma:linux:libwbclient-devel, p-cpe:/a:alma:linux:samba-winbind-krb5-locator, p-cpe:/a:alma:linux:libnetapi, p-cpe:/a:alma:linux:samba-devel, p-cpe:/a:alma:linux:samba-tools, p-cpe:/a:alma:linux:libwbclient, p-cpe:/a:alma:linux:samba-test-libs, p-cpe:/a:alma:linux:samba-dc-libs, p-cpe:/a:alma:linux:ctdb, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, p-cpe:/a:alma:linux:libsmbclient-devel, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:samba-common, p-cpe:/a:alma:linux:samba-test, p-cpe:/a:alma:linux:samba-libs, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:samba-common-libs, p-cpe:/a:alma:linux:libnetapi-devel, p-cpe:/a:alma:linux:samba-client-libs, p-cpe:/a:alma:linux:libsmbclient, p-cpe:/a:alma:linux:samba-client, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::highavailability, p-cpe:/a:alma:linux:samba-pidl, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::baseos, p-cpe:/a:alma:linux:samba-vfs-iouring, p-cpe:/a:alma:linux:python3-samba-dc, cpe:/o:alma:linux:8::sap

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: 6/2/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-3012, CVE-2026-4408, CVE-2026-4480

CWE: 345, 78

RHSA: 2026:22644