diff --git a/doc/src/sgml/release-10.sgml b/doc/src/sgml/release-10.sgml
index 453ee1536ca269e957240e60df2605921307ed72..7b2130e3c19130bb8b6e2e604523c8212f398956 100644
--- a/doc/src/sgml/release-10.sgml
+++ b/doc/src/sgml/release-10.sgml
@@ -35,6 +35,36 @@
 
     <listitem>
 <!--
+Author: Noah Misch <noah@leadboat.com>
+Branch: master [ffa2d37e5] 2019-08-05 07:48:41 -0700
+Branch: REL_12_STABLE [9993fa9dd] 2019-08-05 07:48:45 -0700
+Branch: REL_11_STABLE [21f94c51f] 2019-08-05 07:48:45 -0700
+Branch: REL_10_STABLE [2062007cb] 2019-08-05 07:48:45 -0700
+Branch: REL9_6_STABLE [7da46192d] 2019-08-05 07:48:45 -0700
+Branch: REL9_5_STABLE [752fa3dbf] 2019-08-05 07:48:45 -0700
+Branch: REL9_4_STABLE [86737438b] 2019-08-05 07:48:46 -0700
+-->
+     <para>
+      Require schema qualification to cast to a temporary type when using
+      functional cast syntax (Noah Misch)
+     </para>
+
+     <para>
+      We have long required invocations of temporary functions to
+      explicitly specify the temporary schema, that
+      is <literal>pg_temp.<replaceable>func_name</replaceable>(<replaceable>args</replaceable>)</literal>.
+      Require this as well for casting to temporary types using functional
+      notation, for
+      example <literal>pg_temp.<replaceable>type_name</replaceable>(<replaceable>arg</replaceable>)</literal>.
+      Otherwise it's possible to capture a function call using a temporary
+      object, allowing privilege escalation in much the same ways that we
+      blocked in CVE-2007-2138.
+      (CVE-2019-10208)
+     </para>
+    </listitem>
+
+    <listitem>
+<!--
 Author: Tom Lane <tgl@sss.pgh.pa.us>
 Branch: master Release: REL_12_BR [f946a4091] 2019-06-24 16:43:21 -0400
 Branch: REL_11_STABLE [afaf48afb] 2019-06-24 16:43:05 -0400