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CentOS Linux 6 [TuxCare] Security Update: apr-util / apr-util-devel / apr-util-ldap / apr-util-mysql / etc Multiple Vulnerabilities (CENTOS6:CLSA-2026:1792506468)

critical Nessus Plugin ID 370876

Synopsis

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

Description

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1792506468 advisory.

 - A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function. Users are recommended to upgrade to version 1.6.4, which fixes this issue. (CVE-2026-32327)

 - Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client This issue affects Apache Portable Runtime Utility: from 1.3.0 through 1.6.3. (CVE-2026-34502)

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 based on the guidance in TuxCare advisory CENTOS6:CLSA-2026:1792506468.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1792506468

http://www.nessus.org/u?7c22ec66

Plugin Details

Severity: Critical

ID: 370876

File Name: tuxcare_centos_6_CLSA-2026-1792506468.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/22/2026

Updated: 10/22/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.44

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-32327

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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: 10/20/2026

Vulnerability Publication Date: 8/6/2026

Reference Information

CVE: CVE-2026-32327, CVE-2026-34502

CLSA: 2026:1792506468