RHEL 10 : udisks2 (RHSA-2026:3476)

high Nessus Plugin ID 301028

Synopsis

The remote Red Hat host is missing one or more security updates for udisks2.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3476 advisory.

The Udisks project provides a daemon, tools, and libraries to access and manipulate disks, storage devices, and technologies.

Security Fix(es):

* 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)

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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL udisks2 package based on the guidance in RHSA-2026:3476.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2433717

https://bugzilla.redhat.com/show_bug.cgi?id=2433719

http://www.nessus.org/u?920f13ae

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

Plugin Details

Severity: High

ID: 301028

File Name: redhat-RHSA-2026-3476.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/6/2026

Updated: 3/6/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Important

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: p-cpe:/a:redhat:enterprise_linux:udisks2-iscsi, p-cpe:/a:redhat:enterprise_linux:udisks2-lsm, cpe:/o:redhat:enterprise_linux:10.1, p-cpe:/a:redhat:enterprise_linux:udisks2, p-cpe:/a:redhat:enterprise_linux:udisks2-lvm2, p-cpe:/a:redhat:enterprise_linux:libudisks2, p-cpe:/a:redhat:enterprise_linux:libudisks2-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/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