Missing Authorization in PostgreSQL - CVE-2026-6472
Published: May 14, 2026
Vulnerability identifier: #VU131454
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-6472
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PostgreSQL Global Development Group
Affected software:
PostgreSQL
PostgreSQL
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary SQL functions in victim queries.
The vulnerability exists due to improper access control in the CREATE TYPE command when creating a multirange type without checking schema CREATE privilege. A remote user can create a crafted type to execute arbitrary SQL functions in victim queries.
The issue can hijack queries that use search_path to find user-defined types, including extension-defined types.
How to mitigate CVE-2026-6472
Install security update from vendor's website.