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CentOS Linux 8 [TuxCare] Security Update: expat / expat-devel / expat-static (CENTOS-STREAM8:CLSA-2026:1780578663)

high Nessus Plugin ID 360020

Synopsis

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

Description

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1780578663 advisory.

 - libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document. (CVE-2026-41080)

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 CENTOS-STREAM8:CLSA-2026:1780578663.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1780578663

http://www.nessus.org/u?2b9ea30f

Plugin Details

Severity: High

ID: 360020

File Name: tuxcare_centos_8_CLSA-2026-1780578663.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 1.2

Temporal Score: 0.9

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

CVSS Score Source: CVE-2026-41080

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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: 6/4/2026

Vulnerability Publication Date: 4/16/2026

Reference Information

CVE: CVE-2026-41080

CLSA: 2026:1780578663