PostgreSQL 18.x < 18.2 Heap Buffer Overflow (CVE-2026-2007)

high Nessus Plugin ID 299757

Synopsis

The remote database server is affected by a heap buffer overflow vulnerability.

Description

The version of PostgreSQL installed on the remote host is 18 prior to 18.2. As such, it is potentially affected by a vulnerability:

- Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of attacks that lead to privilege escalation. PostgreSQL 18.1 and 18.0 are affected.
(CVE-2026-2007)

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

Solution

Upgrade to PostgreSQL 18.2 or later.

Plugin Details

Severity: High

ID: 299757

File Name: postgresql_cve-2026-2007.nasl

Version: 1.1

Type: combined

Agent: windows, macosx, unix

Family: Databases

Published: 2/23/2026

Updated: 2/23/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: High

Base Score: 8.5

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

CVSS Score Source: CVE-2026-2007

CVSS v3

Risk Factor: High

Base Score: 8.2

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

Vulnerability Information

CPE: cpe:/a:postgresql:postgresql

Patch Publication Date: 2/12/2026

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-2007

IAVB: 2026-B-0047

Detections

Analytics