Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-16238

high Nessus Plugin ID 335194

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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.

 - Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values.
 Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected. (CVE-2026-16238)

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-2026-16238

https://ubuntu.com/security/CVE-2026-16238

Plugin Details

Severity: High

ID: 335194

File Name: unpatched_CVE_2026_16238.nasl

Version: 1.9

Type: Local

Agent: unix

Family: Misc.

Published: 8/13/2026

Updated: 9/3/2026

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: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

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

CVSS Score Source: CVE-2026-16238

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:postgresql-9.3, p-cpe:/a:redhat:enterprise_linux:postgresql-contrib, p-cpe:/a:redhat:enterprise_linux:postgresql-docs, p-cpe:/a:redhat:enterprise_linux:postgresql-plperl, p-cpe:/a:redhat:enterprise_linux:postgresql-plpython3, p-cpe:/a:redhat:enterprise_linux:postgresql-pltcl, p-cpe:/a:redhat:enterprise_linux:postgresql-private-devel, p-cpe:/a:redhat:enterprise_linux:postgresql-private-libs, p-cpe:/a:redhat:enterprise_linux:postgresql-server-devel, p-cpe:/a:redhat:enterprise_linux:postgresql-server, p-cpe:/a:redhat:enterprise_linux:postgresql-static, p-cpe:/a:redhat:enterprise_linux:postgresql-test-rpm-macros, p-cpe:/a:redhat:enterprise_linux:postgresql-test, p-cpe:/a:redhat:enterprise_linux:postgresql-upgrade-devel, p-cpe:/a:redhat:enterprise_linux:postgresql-upgrade, p-cpe:/a:redhat:enterprise_linux:postgresql18-contrib, p-cpe:/a:redhat:enterprise_linux:postgresql18-docs, p-cpe:/a:redhat:enterprise_linux:postgresql18-plperl, p-cpe:/a:redhat:enterprise_linux:postgresql18-plpython3, p-cpe:/a:redhat:enterprise_linux:postgresql18-private-devel, p-cpe:/a:redhat:enterprise_linux:postgresql18-private-libs, p-cpe:/a:redhat:enterprise_linux:postgresql18-server-devel, p-cpe:/a:redhat:enterprise_linux:postgresql18-server, p-cpe:/a:redhat:enterprise_linux:postgresql18-static, p-cpe:/a:redhat:enterprise_linux:postgresql18-test-rpm-macros, p-cpe:/a:redhat:enterprise_linux:postgresql18-test, p-cpe:/a:redhat:enterprise_linux:postgresql18-upgrade-devel, p-cpe:/a:redhat:enterprise_linux:postgresql18-upgrade, p-cpe:/a:redhat:enterprise_linux:postgresql18, p-cpe:/a:redhat:enterprise_linux:postgresql

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: 8/13/2026

Reference Information

CVE: CVE-2026-16238