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Linux Distros Unpatched Vulnerability : CVE-2026-2006

high Nessus Plugin ID 298910

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.

 - Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected. (CVE-2026-2006)

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-2026-2006

https://security-tracker.debian.org/tracker/CVE-2026-2006

Plugin Details

Severity: High

ID: 298910

File Name: unpatched_CVE_2026_2006.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 2/13/2026

Updated: 2/13/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2026-2006

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:debian:debian_linux:11.0, p-cpe:/a:centos:centos:postgresql, p-cpe:/a:centos:centos:postgresql-plperl, p-cpe:/a:redhat:enterprise_linux:postgresql, p-cpe:/a:redhat:enterprise_linux:postgresql-plperl, p-cpe:/a:redhat:enterprise_linux:pgaudit, p-cpe:/a:centos:centos:pgaudit, p-cpe:/a:redhat:enterprise_linux:postgresql-private-devel, p-cpe:/a:centos:centos:postgresql-private-devel, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:postgresql16, p-cpe:/a:centos:centos:postgresql16, p-cpe:/a:redhat:enterprise_linux:postgresql18, p-cpe:/a:centos:centos:postgresql18, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:postgresql-contrib, p-cpe:/a:centos:centos:postgresql-docs, p-cpe:/a:centos:centos:postgresql-server, p-cpe:/a:centos:centos:postgresql-test, p-cpe:/a:centos:centos:postgresql-pltcl, p-cpe:/a:centos:centos:postgresql-upgrade, p-cpe:/a:centos:centos:postgresql-static, p-cpe:/a:redhat:enterprise_linux:postgresql-contrib, p-cpe:/a:redhat:enterprise_linux:postgresql-docs, p-cpe:/a:redhat:enterprise_linux:postgresql-server, p-cpe:/a:redhat:enterprise_linux:postgresql-test, p-cpe:/a:redhat:enterprise_linux:postgresql-pltcl, p-cpe:/a:redhat:enterprise_linux:postgresql-upgrade, p-cpe:/a:redhat:enterprise_linux:postgresql-plpython3, p-cpe:/a:redhat:enterprise_linux:postgresql-server-devel, 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-upgrade-devel, p-cpe:/a:redhat:enterprise_linux:postgres-decoderbufs, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:postgresql-plpython3, p-cpe:/a:centos:centos:postgresql-server-devel, p-cpe:/a:centos:centos:postgresql-test-rpm-macros, p-cpe:/a:centos:centos:postgresql-upgrade-devel, p-cpe:/a:centos:centos:postgres-decoderbufs, p-cpe:/a:debian:debian_linux:postgresql-13, p-cpe:/a:centos:centos:pg_repack, p-cpe:/a:redhat:enterprise_linux:pg_repack, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:postgresql-private-libs, p-cpe:/a:centos:centos:postgresql-private-libs, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:debian:debian_linux:postgresql-18

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-2006