RHEL 8 : postgresql:15 (RHSA-2026:69923)

high Nessus Plugin ID 348792

Synopsis

The remote Red Hat host is missing one or more security updates for postgresql:15.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:69923 advisory.

PostgreSQL is an advanced object-relational database management system (DBMS).

Security Fix(es):

* postgresql: PostgreSQL: Arbitrary code execution via integer wraparound in tsvector and tsquery functions (CVE-2026-14662)

* postgresql: PostgreSQL: Arbitrary code execution via untrusted data inclusion in pg_dump (CVE-2026-18408)

* postgresql: PostgreSQL psql: Arbitrary command execution via untrusted data in COPY FROM STDIN (CVE-2026-6464)

* postgresql: PostgreSQL: Arbitrary code execution via logical decoding plugin (CVE-2026-6471)

* postgresql: PostgreSQL: Arbitrary code execution via type confusion with internal arguments (CVE-2026-14680)

* postgresql: PostgreSQL: Arbitrary code execution via heap buffer overflow in regexp (CVE-2026-14664)

* postgresql: pltcl: plperl: PostgreSQL: Arbitrary code execution in 32-bit pltcl and plperl (CVE-2026-14677)

* postgresql-fuzzystrmatch: PostgreSQL fuzzystrmatch: Arbitrary code execution via integer wraparound (CVE-2026-15742)

* postgresql: PostgreSQL: Arbitrary code execution via type confusion in cursor lifecycle (CVE-2026-16239)

* postgresql: PostgreSQL: Arbitrary code execution via long POSIX timezone abbreviation (CVE-2026-14669)

* postgresql: PostgreSQL: Stack buffer overflow via OUT parameter count manipulation (CVE-2026-14679)

* postgresql: PostgreSQL: Arbitrary code execution via type confusion in 'refint' module (CVE-2026-14671)

* postgresql: PostgreSQL: Arbitrary code execution via plperl tied hash heap buffer overflow (CVE-2026-14670)

* postgresql: PostgreSQL: Information disclosure via type confusion in ctid selectivity estimator (CVE-2026-14668)

* postgresql: PostgreSQL pg_dump: Arbitrary code execution via crafted transform lists (CVE-2026-19385)

* postgresql: PostgreSQL: Privilege escalation via SQL injection in EXTRACT() deparse (CVE-2026-15741)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL postgresql:15 package based on the guidance in RHSA-2026:69923.

Plugin Details

Severity: High

ID: 348792

File Name: redhat-RHSA-2026-69923.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/22/2026

Updated: 9/22/2026

Supported Sensors: Agentless Assessment, Continuous 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: High

Score: 7.9

Percentile: 99.36

Vendor

Vendor Severity: Important

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-2026-18408

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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:P/RL:O/RC:C

CVSS Score Source: CVE-2026-19385

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_eus:8.10, 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:postgresql

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2026

Vulnerability Publication Date: 8/13/2026

Reference Information

CVE: CVE-2026-14662, CVE-2026-14664, CVE-2026-14668, CVE-2026-14669, CVE-2026-14670, CVE-2026-14671, CVE-2026-14677, CVE-2026-14679, CVE-2026-14680, CVE-2026-15741, CVE-2026-15742, CVE-2026-16239, CVE-2026-18408, CVE-2026-19385, CVE-2026-6464, CVE-2026-6471

CWE: 121, 122, 190, 787, 805, 829, 843, 89, 94

RHSA: 2026:69923

Detections

Analytics