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CentOS Linux 7 [TuxCare] Security Update: flatpak / flatpak-builder / flatpak-devel / flatpak-libs (CENTOS7:CLSA-2026:1793029206)

high Nessus Plugin ID 373907

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1793029206 advisory.

 - A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files (such as passwd, group, machine-id, or resolv.conf) to be emptied or replaced with a symlink when the app is installed or upgraded. In system- wide installations, the write is performed as root. (CVE-2026-97024)

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 CENTOS7:CLSA-2026:1793029206.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1793029206

http://www.nessus.org/u?ea313630

Plugin Details

Severity: High

ID: 373907

File Name: tuxcare_centos_7_CLSA-2026-1793029206.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/29/2026

Updated: 10/29/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

Percentile: 95.84

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-97024

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2026

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-97024

CLSA: 2026:1793029206