PostgreSQL up to 15.3 MERGE insufficient granularity of access control

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in PostgreSQL up to 15.3 and classified as problematic. This affects an unknown part of the component MERGE Handler. This manipulation causes an unknown weakness. This vulnerability appears as CVE-2023-39418. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in PostgreSQL up to 15.3 (Database Software). Affected by this vulnerability is an unknown part of the component MERGE Handler. The CWE definition for the vulnerability is CWE-1220. The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets. As an impact it is known to affect integrity.

The weakness was presented 08/11/2023. The advisory is shared at postgresql.org. This vulnerability is known as CVE-2023-39418 since 08/01/2023. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 216614 (Oracle Linux 9 : postgresql:15 (ELSA-2025-1741)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 15.4 eliminates this vulnerability. The upgrade is hosted for download at postgresql.org.

The vulnerability is also documented in the databases at Tenable (216614) and EUVD (EUVD-2023-43142). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 3.1
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Insufficient granularity of access control
CWE: CWE-1220 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216614
Nessus Name: Oracle Linux 9 : postgresql:15 (ELSA-2025-1741)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PostgreSQL 15.4
Patch: cb2ae5741f2458a474ed3c31458d242e678ff229

Timelineinfo

08/01/2023 🔍
08/11/2023 +10 days 🔍
08/11/2023 +0 days 🔍
09/13/2025 +764 days 🔍

Sourcesinfo

Product: postgresql.org

Advisory: postgresql.org
Status: Confirmed

CVE: CVE-2023-39418 (🔍)
GCVE (CVE): GCVE-0-2023-39418
GCVE (VulDB): GCVE-100-236953
EUVD: 🔍

Entryinfo

Created: 08/11/2023 09:49
Updated: 09/13/2025 04:49
Changes: 08/11/2023 09:49 (38), 09/08/2023 09:05 (3), 09/08/2023 09:06 (21), 09/16/2024 18:50 (15), 12/06/2024 13:46 (1), 02/22/2025 03:54 (2), 09/13/2025 04:49 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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