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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-83610] Consider reducing privileges required for $documents</title>
                <link>https://jira.mongodb.org/browse/SERVER-83610</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Queries starting with $documents require DB-level permissions (or possibly just permissions on the namespace db.$cmd.aggregate used for collection-less queries &#8211; though I don&apos;t know if it&apos;s possible to create a privilege for this namespace).&#160;&lt;/p&gt;

&lt;p&gt;For example, the simple query&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[{$documents: [{a: 1}, {a: 2}, {a: 3}]}].&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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			&lt;/tbody&gt;
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&lt;p/&gt;
&lt;p&gt;triggers auth errors for a user that does not have DB-level permissions; see HELP-52691.&lt;/p&gt;

&lt;p&gt;I believe this query and others containing $documents should not require these permissions. The issue seems to be that $documents is not marked as an &lt;a href=&quot;https://github.com/mongodb/mongo/blob/97afefe815cc546f3cb941741bc59ab8805b7422/src/mongo/db/pipeline/lite_parsed_document_source.h#L192-L197&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&quot;initial source&quot;&lt;/a&gt;, so we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/97afefe815cc546f3cb941741bc59ab8805b7422/src/mongo/db/auth/authorization_checks.cpp#L339-L346&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;require privileges for its namespace&lt;/a&gt; to execute the query. I&apos;m not sure why we decided this; it seems like an oversight to me especially because &lt;a href=&quot;https://github.com/mongodb/mongo/blob/97afefe815cc546f3cb941741bc59ab8805b7422/src/mongo/db/pipeline/document_source_documents.h#L64-L66&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;$documents requires no privileges itself&lt;/a&gt;.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2510088">SERVER-83610</key>
            <summary>Consider reducing privileges required for $documents</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="hana.pearlman@mongodb.com">Hana Pearlman</assignee>
                                    <reporter username="hana.pearlman@mongodb.com">Hana Pearlman</reporter>
                        <labels>
                    </labels>
                <created>Mon, 27 Nov 2023 21:44:20 +0000</created>
                <updated>Wed, 7 Feb 2024 16:53:14 +0000</updated>
                            <resolved>Wed, 24 Jan 2024 19:43:49 +0000</resolved>
                                                    <fixVersion>7.0.6</fixVersion>
                    <fixVersion>6.0.14</fixVersion>
                    <fixVersion>8.0.0-rc0</fixVersion>
                    <fixVersion>7.3.0-rc2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="6075660" author="xgen-internal-githook" created="Wed, 7 Feb 2024 16:53:14 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;HanaPearlman&apos;, &apos;email&apos;: &apos;hana.pearlman@mongodb.com&apos;, &apos;username&apos;: &apos;HanaPearlman&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;: Reduce required privileges for $documents by marking it&#8230; (#18701)&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;(&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610):&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-83610):&lt;/a&gt; Reduce&lt;br/&gt;
required privileges for $documents by marking it as an initial source&lt;/p&gt;

&lt;p&gt;Aggregations starting with $documents do not read from a collection;&lt;br/&gt;
they produce the data specified in the $documents stage. So, these&lt;br/&gt;
queries should not require any particular namespace privileges aside&lt;br/&gt;
from those required by other document sources in the pipeline. This&lt;br/&gt;
change makes it so that $documents is marked as an &quot;initial source&quot; to&lt;br/&gt;
indicate that it does not require any particular namespace privileges.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 926b63e24d0306b6a5089b6938e673dd55267d79&lt;br/&gt;
Branch: v7.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/59af5a499a78d5c6ffbda09dede40099e7bc05de&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/59af5a499a78d5c6ffbda09dede40099e7bc05de&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6071268" author="xgen-internal-githook" created="Tue, 6 Feb 2024 14:06:27 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;HanaPearlman&apos;, &apos;email&apos;: &apos;hana.pearlman@mongodb.com&apos;, &apos;username&apos;: &apos;HanaPearlman&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;: Reduce required privileges for $documents by marking it&#8230; (#18700)&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;(&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610):&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-83610):&lt;/a&gt; Reduce&lt;br/&gt;
required privileges for $documents by marking it as an initial source&lt;/p&gt;

&lt;p&gt;Aggregations starting with $documents do not read from a collection;&lt;br/&gt;
they produce the data specified in the $documents stage. So, these&lt;br/&gt;
queries should not require any particular namespace privileges aside&lt;br/&gt;
from those required by other document sources in the pipeline. This&lt;br/&gt;
change makes it so that $documents is marked as an &quot;initial source&quot; to&lt;br/&gt;
indicate that it does not require any particular namespace privileges.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 2ac64606f04171af6af13d09512ee3c68083dfc6&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0a9a5c0b730eb63673828a87e70e867ef07867f9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0a9a5c0b730eb63673828a87e70e867ef07867f9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6069122" author="xgen-internal-githook" created="Mon, 5 Feb 2024 22:10:47 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;HanaPearlman&apos;, &apos;email&apos;: &apos;hana.pearlman@mongodb.com&apos;, &apos;username&apos;: &apos;HanaPearlman&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;: Reduce required privileges for $documents by marking it&#8230; (#18702)&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;(&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610):&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-83610):&lt;/a&gt; Reduce&lt;br/&gt;
required privileges for $documents by marking it as an initial source&lt;/p&gt;

&lt;p&gt;Aggregations starting with $documents do not read from a collection;&lt;br/&gt;
they produce the data specified in the $documents stage. So, these&lt;br/&gt;
queries should not require any particular namespace privileges aside&lt;br/&gt;
from those required by other document sources in the pipeline. This&lt;br/&gt;
change makes it so that $documents is marked as an &quot;initial source&quot; to&lt;br/&gt;
indicate that it does not require any particular namespace privileges.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: fa0030e240db99549a3d57fc03e60065a6b31252&lt;br/&gt;
Branch: v7.3&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fdc13a4114c5763745e3af86c15b5d575d0d2499&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fdc13a4114c5763745e3af86c15b5d575d0d2499&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6038899" author="hana.pearlman" created="Wed, 24 Jan 2024 19:46:41 +0000"  >&lt;p&gt;Requesting backports to all versions that have the $documents stage. It&apos;s unclear to me if this is something we want to backport, but the HELP ticket came from a customer on v6.0.&lt;/p&gt;</comment>
                            <comment id="6038824" author="xgen-internal-githook" created="Wed, 24 Jan 2024 19:22:48 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;HanaPearlman&apos;, &apos;email&apos;: &apos;hana.pearlman@mongodb.com&apos;, &apos;username&apos;: &apos;HanaPearlman&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;: Reduce required privileges for $documents by marking it&#8230; (#18201)&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83610&quot; title=&quot;Consider reducing privileges required for $documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83610&quot;&gt;&lt;del&gt;SERVER-83610&lt;/del&gt;&lt;/a&gt;: Reduce required privileges for $documents by marking it as&lt;br/&gt;
an initial source&lt;/p&gt;

&lt;p&gt;Aggregations starting with $documents do not read from a collection;&lt;br/&gt;
they produce the data specified in the $documents stage. So, these&lt;br/&gt;
queries should not require any particular namespace privileges aside&lt;br/&gt;
from those required by other document sources in the pipeline. This&lt;br/&gt;
change makes it so that $documents is marked as an &quot;initial source&quot; to&lt;br/&gt;
indicate that it does not require any particular namespace privileges.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 3b2d1e8701a3c5a565f9f6488da980c386282866&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ec69f8f3747a741c169632b85e36cbf5f2e4e5e1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ec69f8f3747a741c169632b85e36cbf5f2e4e5e1&lt;/a&gt;&lt;/p&gt;</comment>
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