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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>31.7. Security</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="logical-replication-monitoring.html" title="31.6. Monitoring" /><link rel="next" href="logical-replication-config.html" title="31.8. Configuration Settings" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">31.7. Security</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="logical-replication-monitoring.html" title="31.6. Monitoring">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="logical-replication.html" title="Chapter 31. Logical Replication">Up</a></td><th width="60%" align="center">Chapter 31. Logical Replication</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="logical-replication-config.html" title="31.8. Configuration Settings">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="LOGICAL-REPLICATION-SECURITY"><div class="titlepage"><div><div><h2 class="title" style="clear: both">31.7. Security</h2></div></div></div><p>
+   A user able to modify the schema of subscriber-side tables can execute
+   arbitrary code as a superuser.  Limit ownership
+   and <code class="literal">TRIGGER</code> privilege on such tables to roles that
+   superusers trust.  Moreover, if untrusted users can create tables, use only
+   publications that list tables explicitly.  That is to say, create a
+   subscription <code class="literal">FOR ALL TABLES</code> only when superusers trust
+   every user permitted to create a non-temp table on the publisher or the
+   subscriber.
+  </p><p>
+   The role used for the replication connection must have
+   the <code class="literal">REPLICATION</code> attribute (or be a superuser).  If the
+   role lacks <code class="literal">SUPERUSER</code> and <code class="literal">BYPASSRLS</code>,
+   publisher row security policies can execute.  If the role does not trust
+   all table owners, include <code class="literal">options=-crow_security=off</code> in
+   the connection string; if a table owner then adds a row security policy,
+   that setting will cause replication to halt rather than execute the policy.
+   Access for the role must be configured in <code class="filename">pg_hba.conf</code>
+   and it must have the <code class="literal">LOGIN</code> attribute.
+  </p><p>
+   In order to be able to copy the initial table data, the role used for the
+   replication connection must have the <code class="literal">SELECT</code> privilege on
+   a published table (or be a superuser).
+  </p><p>
+   To create a publication, the user must have the <code class="literal">CREATE</code>
+   privilege in the database.
+  </p><p>
+   To add tables to a publication, the user must have ownership rights on the
+   table.  To create a publication that publishes all tables automatically,
+   the user must be a superuser.
+  </p><p>
+   To create a subscription, the user must be a superuser.
+  </p><p>
+   The subscription apply process will run in the local database with the
+   privileges of a superuser.
+  </p><p>
+   Privileges are only checked once at the start of a replication connection.
+   They are not re-checked as each change record is read from the publisher,
+   nor are they re-checked for each change when applied.
+  </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="logical-replication-monitoring.html" title="31.6. Monitoring">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="logical-replication.html" title="Chapter 31. Logical Replication">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="logical-replication-config.html" title="31.8. Configuration Settings">Next</a></td></tr><tr><td width="40%" align="left" valign="top">31.6. Monitoring </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 31.8. Configuration Settings</td></tr></table></div></body></html>
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