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A superuser may create a subscription with password_required=true, but which uses a connection string without a password. Previously, if the owner of such a subscription was changed to a non-superuser, the non-superuser was able to utilize a password from another source (like a password file or the PGPASSWORD environment variable), which should not have been allowed. This commit adds a step to re-validate the connection string before connecting. Reported-by: Jeff Davis Author: Vignesh C Reviewed-by: Peter Smith, Robert Haas, Amit Kapila Discussion: https://www.postgresql.org/message-id/flat/e5892973ae2a80a1a3e0266806640dae3c428100.camel%40j-davis.com Backpatch-through: 16
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/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/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/.