AlmaLinux 10 : udisks2 (ALSA-2026:3476)

high Nessus Plugin ID 301098

Synopsis

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

Description

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:3476 advisory.

* udisks: Missing Authorization Check Allows Unprivileged Users to Back Up LUKS Headers via udisks D-Bus API (CVE-2026-26104)
* udisks: Missing Authorization Check Allows Unprivileged Users to Restore LUKS Headers via udisks D-Bus API (CVE-2026-26103)

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/10/ALSA-2026-3476.html

https://access.redhat.com/errata/RHSA-2026:3476

Plugin Details

Severity: High

ID: 301098

File Name: alma_linux_ALSA-2026-3476.nasl

Version: 1.2

Type: local

Published: 3/6/2026

Updated: 3/6/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-26103

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:10::resilientstorage, p-cpe:/a:alma:linux:udisks2-lvm2, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::realtime, cpe:/o:alma:linux:10::supplementary, cpe:/o:alma:linux:10::powertools, p-cpe:/a:alma:linux:libudisks2, p-cpe:/a:alma:linux:libudisks2-devel, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::appstream, cpe:/o:alma:linux:10, p-cpe:/a:alma:linux:udisks2-iscsi, cpe:/o:alma:linux:10::baseos, p-cpe:/a:alma:linux:udisks2, cpe:/o:alma:linux:10::sap_hana, cpe:/o:alma:linux:10::nfv, p-cpe:/a:alma:linux:udisks2-lsm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/2/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-26103, CVE-2026-26104

CWE: 862

IAVA: 2026-A-0191

RHSA: 2026:3476