c27ba08cd5
This omission allowed roles to create multirange types in any schema, potentially leading to privilege escalations. Note that when a multirange type name is not specified in CREATE TYPE, it is automatically placed in the range type's schema, which is checked at the beginning of DefineRange(). Reported-by: Jelte Fennema-Nio <postgres@jeltef.nl> Author: Jelte Fennema-Nio <postgres@jeltef.nl> Reviewed-by: Nathan Bossart <nathandbossart@gmail.com> Reviewed-by: Tomas Vondra <tomas@vondra.me> Security: CVE-2026-6472 Backpatch-through: 14
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.