CVE-2026-6470
PostgreSQL fails to check type USAGE privilege
Description
Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against ALTER and DROP of the type, via creating a dependency on the type. Many DDL operations did check the privilege, but assigning a range subtype and referencing the type from an SQL expression did not. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
INFO
Published Date :
Aug. 13, 2026, 1:19 p.m.
Last Modified :
Aug. 19, 2026, 3:02 p.m.
Remotely Exploit :
No
Source :
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 |
Solution
- Update PostgreSQL to version 18.5 or later.
- Update PostgreSQL to version 17.11 or later.
- Update PostgreSQL to version 16.15 or later.
- Update PostgreSQL to version 15.19 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-6470.
| URL | Resource |
|---|---|
| https://www.postgresql.org/support/security/CVE-2026-6470/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-6470 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-6470
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-6470 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-6470 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* versions from (including) 14.0 up to (excluding) 14.24 *cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.19 *cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* versions from (including) 16.0 up to (excluding) 16.15 *cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* versions from (including) 17.0 up to (excluding) 17.11 *cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* versions from (including) 18.0 up to (excluding) 18.5 Added Reference Type PostgreSQL: https://www.postgresql.org/support/security/CVE-2026-6470/ Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 13, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-6470', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-13T13:25:03.310458Z'} -
New CVE Received by f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Aug. 13, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n/a', 'product': 'PostgreSQL', 'versions': [{'status': 'affected', 'version': '18', 'lessThan': '18.5', 'versionType': 'rpm'}, {'status': 'affected', 'version': '17', 'lessThan': '17.11', 'versionType': 'rpm'}, {'status': 'affected', 'version': '16', 'lessThan': '16.15', 'versionType': 'rpm'}, {'status': 'affected', 'version': '15', 'lessThan': '15.19', 'versionType': 'rpm'}, {'status': 'affected', 'version': '0', 'lessThan': '14.24', 'versionType': 'rpm'}], 'defaultStatus': 'unaffected'}] Added Description Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against ALTER and DROP of the type, via creating a dependency on the type. Many DDL operations did check the privilege, but assigning a range subtype and referencing the type from an SQL expression did not. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-862 Added Reference https://www.postgresql.org/support/security/CVE-2026-6470/