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Nathan Bossart 7ad8e79098 Restrict psql meta-commands in plain-text dumps.
A malicious server could inject psql meta-commands into plain-text
dump output (i.e., scripts created with pg_dump --format=plain,
pg_dumpall, or pg_restore --file) that are run at restore time on
the machine running psql.  To fix, introduce a new "restricted"
mode in psql that blocks all meta-commands (except for \unrestrict
to exit the mode), and teach pg_dump, pg_dumpall, and pg_restore to
use this mode in plain-text dumps.

While at it, encourage users to only restore dumps generated from
trusted servers or to inspect it beforehand, since restoring causes
the destination to execute arbitrary code of the source superusers'
choice.  However, the client running the dump and restore needn't
trust the source or destination superusers.

Reported-by: Martin Rakhmanov
Reported-by: Matthieu Denais <litezeraw@gmail.com>
Reported-by: RyotaK <ryotak.mail@gmail.com>
Suggested-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Noah Misch <noah@leadboat.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Security: CVE-2025-8714
Backpatch-through: 13
2025-08-11 09:00:00 -05:00
config Don't put library-supplied -L/-I switches before user-supplied ones. 2025-07-29 15:17:41 -04:00
contrib Fix incorrect lack of Datum conversion in _int_matchsel() 2025-08-08 12:10:52 +02:00
doc Restrict psql meta-commands in plain-text dumps. 2025-08-11 09:00:00 -05:00
src Restrict psql meta-commands in plain-text dumps. 2025-08-11 09:00:00 -05:00
.cirrus.star ci: Prepare to make compute resources for CI configurable 2023-08-23 15:15:28 -07:00
.cirrus.tasks.yml Update ICU C++ API symbols 2025-08-07 17:14:39 +07:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:28 -07:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs Add b334612b8 to .git-blame-ignore-revs. 2023-06-20 09:52:52 -04:00
.gitattributes Exclude LLVM files from whitespace checks 2024-11-27 11:09:38 +01:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Fix ./configure checks with __cpuidex() and __cpuid() 2025-07-30 11:55:49 +09:00
configure.ac Fix ./configure checks with __cpuidex() and __cpuid() 2025-07-30 11:55:49 +09:00
COPYRIGHT Align organization wording in copyright statement 2025-05-16 11:20:07 -04:00
GNUmakefile.in Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Dynamically find correct installation docs in Makefile. 2022-01-19 14:48:25 +01:00
meson.build meson: Fix meson warning 2025-06-22 14:15:40 +02:00
meson_options.txt meson: Attach colon to keyword argument 2023-06-29 12:53:41 +02:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

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.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.