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Linux Distros Unpatched Vulnerability : CVE-2026-14672

medium Nessus Plugin ID 335224

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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.

 - Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations. Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected. (CVE-2026-14672)

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-2026-14672

https://ubuntu.com/security/CVE-2026-14672

Plugin Details

Severity: Medium

ID: 335224

File Name: unpatched_CVE_2026_14672.nasl

Version: 1.12

Type: Local

Agent: unix

Family: Misc.

Published: 8/13/2026

Updated: 9/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-14672

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

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

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:postgresql-9.3, p-cpe:/a:centos:centos:pg_repack, p-cpe:/a:centos:centos:pgaudit, p-cpe:/a:centos:centos:postgres-decoderbufs, p-cpe:/a:centos:centos:postgresql-contrib, p-cpe:/a:centos:centos:postgresql-docs, p-cpe:/a:centos:centos:postgresql-plperl, p-cpe:/a:centos:centos:postgresql-plpython3, p-cpe:/a:centos:centos:postgresql-pltcl, p-cpe:/a:centos:centos:postgresql-private-devel, p-cpe:/a:centos:centos:postgresql-private-libs, p-cpe:/a:centos:centos:postgresql-server-devel, p-cpe:/a:centos:centos:postgresql-server, p-cpe:/a:centos:centos:postgresql-static, p-cpe:/a:centos:centos:postgresql-test-rpm-macros, p-cpe:/a:centos:centos:postgresql-test, p-cpe:/a:centos:centos:postgresql-upgrade-devel, p-cpe:/a:centos:centos:postgresql-upgrade, p-cpe:/a:centos:centos:postgresql16, p-cpe:/a:centos:centos:postgresql18-contrib, p-cpe:/a:centos:centos:postgresql18-docs, p-cpe:/a:centos:centos:postgresql18-plperl, p-cpe:/a:centos:centos:postgresql18-plpython3, p-cpe:/a:centos:centos:postgresql18-private-devel, p-cpe:/a:centos:centos:postgresql18-private-libs, p-cpe:/a:centos:centos:postgresql18-server-devel, p-cpe:/a:centos:centos:postgresql18-server, p-cpe:/a:centos:centos:postgresql18-static, p-cpe:/a:centos:centos:postgresql18-test-rpm-macros, p-cpe:/a:centos:centos:postgresql18-test, p-cpe:/a:centos:centos:postgresql18-upgrade-devel, p-cpe:/a:centos:centos:postgresql18-upgrade, p-cpe:/a:centos:centos:postgresql18, p-cpe:/a:centos:centos:postgresql, p-cpe:/a:redhat:enterprise_linux:pg_repack, p-cpe:/a:redhat:enterprise_linux:pgaudit, p-cpe:/a:redhat:enterprise_linux:postgres-decoderbufs, 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:postgresql16, 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/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/13/2026

Reference Information

CVE: CVE-2026-14672