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AlmaLinux 9.2 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.2:CLSA-2026:1792190438)

high Nessus Plugin ID 366721

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1792190438 advisory.

 - A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal. (CVE-2026-96275)

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 based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1792190438.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1792190438

http://www.nessus.org/u?9ad8559c

Plugin Details

Severity: High

ID: 366721

File Name: tuxcare_alma_linux_9.2_CLSA-2026-1792190438.nasl

Version: 1.1

Type: Local

Published: 10/17/2026

Updated: 10/17/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-96275

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 10/16/2026

Vulnerability Publication Date: 9/17/2026

Reference Information

CVE: CVE-2026-96275

CLSA: 2026:1792190438