Detections
Analytics
PostgreSQL 14.x < 14.24 / 15.x < 15.19 / 16.x < 16.15 / 18.x < 18.6 amcheck Untrusted Search Path
low Nessus Plugin ID 342123
Synopsis
The remote database server is affected by a privilege escalation vulnerability.Description
The version of PostgreSQL installed on the remote host is 14 prior to 14.24, 15 prior to 15.19, 16 prior to 16.15, or 18 prior to 18.6. As such, it is potentially affected by a privilege escalation vulnerability:- Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16, 15, and 14, minor versions before PostgreSQL 18.6, 16.15, 15.19, and 14.24 are affected. PostgreSQL 17 is unaffected.
(CVE-2026-14673)
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 14.24 / 15.19 / 16.15 / 18.6 or later.See Also
Plugin Details
Severity: Low
ID: 342123
File Name: postgresql_20260813_3.nasl
Version: 1.1
Type: Combined
Agent: windows, macosx, unix
Family: Databases
Published: 9/1/2026
Updated: 9/1/2026
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 2.1
Percentile: 7.96
CVSS v2
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.1
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N
CVSS Score Source: CVE-2026-14673
CVSS v3
Risk Factor: Low
Base Score: 3.8
Temporal Score: 3.3
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-14673
Vulnerability Information
CPE: cpe:/a:postgresql:postgresql
Exploit Ease: No known exploits are available
Patch Publication Date: 8/13/2026
Vulnerability Publication Date: 8/13/2026
Reference Information
CVE: CVE-2026-14673
IAVB: 2026-B-0238