Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-32327

critical Nessus Plugin ID 333188

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-32327

https://ubuntu.com/security/CVE-2026-32327

Plugin Details

Severity: Critical

ID: 333188

File Name: unpatched_CVE_2026_32327.nasl

Version: 1.6

Type: Local

Agent: unix

Family: Misc.

Published: 8/7/2026

Updated: 8/16/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.62

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-32327

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.3

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:U/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:apr-util, p-cpe:/a:centos:centos:apr-util-bdb, p-cpe:/a:centos:centos:apr-util-devel, p-cpe:/a:centos:centos:apr-util-ldap, p-cpe:/a:centos:centos:apr-util-lmdb, p-cpe:/a:centos:centos:apr-util-mysql, p-cpe:/a:centos:centos:apr-util-nss, p-cpe:/a:centos:centos:apr-util-odbc, p-cpe:/a:centos:centos:apr-util-openssl, p-cpe:/a:centos:centos:apr-util-pgsql, p-cpe:/a:centos:centos:apr-util-sqlite, p-cpe:/a:centos:centos:apr-util, p-cpe:/a:redhat:enterprise_linux:apr-util-bdb, p-cpe:/a:redhat:enterprise_linux:apr-util-devel, p-cpe:/a:redhat:enterprise_linux:apr-util-ldap, p-cpe:/a:redhat:enterprise_linux:apr-util-lmdb, p-cpe:/a:redhat:enterprise_linux:apr-util-mysql, p-cpe:/a:redhat:enterprise_linux:apr-util-nss, p-cpe:/a:redhat:enterprise_linux:apr-util-odbc, p-cpe:/a:redhat:enterprise_linux:apr-util-openssl, p-cpe:/a:redhat:enterprise_linux:apr-util-pgsql, p-cpe:/a:redhat:enterprise_linux:apr-util-sqlite, p-cpe:/a:redhat:enterprise_linux:apr-util

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/6/2026

Reference Information

CVE: CVE-2026-32327