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RockyLinux 8 : libxml2 (RLSA-2026:69655)

high Nessus Plugin ID 349270

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Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:69655 advisory.

 * libxml2: mingw-libxml2: libxml2: Denial of Service via crafted XML input due to use-after-free (CVE-2026-6653)

 Bug Fix(es) and Enhancement(s):

 * libxml2: CVE-2025-9714 fix (Rocky Linux-119279) backported wrong upstream commit ? dyn:map recursion still crashes (JIRA:Rocky Linux-249282)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

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.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2491354

https://errata.rockylinux.org/RLSA-2026:69655

Plugin Details

Severity: High

ID: 349270

File Name: rocky_linux_RLSA-2026-69655.nasl

Version: 1.1

Type: Local

Published: 9/23/2026

Updated: 9/23/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.62

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-6653

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:libxml2-debuginfo, p-cpe:/a:rocky:linux:libxml2-debugsource, p-cpe:/a:rocky:linux:libxml2-devel, p-cpe:/a:rocky:linux:libxml2, p-cpe:/a:rocky:linux:python3-libxml2-debuginfo, p-cpe:/a:rocky:linux:python3-libxml2

Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/23/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-6653