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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-27318] Network layer should reject OP_COMMAND requests where &quot;command name&quot; wire protocol field doesn&apos;t match first element of command request object</title>
                <link>https://jira.mongodb.org/browse/SERVER-27318</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;According to discussion at &lt;a href=&quot;https://groups.google.com/forum/#!topic/mongodb-dev/tJMdvcpGq6Y&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/forum/#!topic/mongodb-dev/tJMdvcpGq6Y&lt;/a&gt;, it seems as if the server dispatches OP_COMMAND requests based on the wire protocol &quot;command name&quot; field, but the network layer never verifies that the &quot;command name&quot; field matches the first element of the command request.  This can yield confusing error messages in command execution (as exhibited by the thread above), and can possibly trip an assertion if any command implementations assert that the first field of the command request object is the expected command name.&lt;/p&gt;</description>
                <environment></environment>
        <key id="337025">SERVER-27318</key>
            <summary>Network layer should reject OP_COMMAND requests where &quot;command name&quot; wire protocol field doesn&apos;t match first element of command request object</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-query">Backlog - Query Team</assignee>
                                    <reporter username="rassi">J Rassi</reporter>
                        <labels>
                    </labels>
                <created>Wed, 7 Dec 2016 17:22:41 +0000</created>
                <updated>Tue, 6 Dec 2022 04:10:12 +0000</updated>
                            <resolved>Thu, 22 Dec 2016 23:42:34 +0000</resolved>
                                                                    <component>Networking</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="1464518" author="spencer.jackson@10gen.com" created="Thu, 22 Dec 2016 23:42:03 +0000"  >&lt;p&gt;I believe this ticket is a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-23887&quot; title=&quot;Invariant failure !cmd.isEmpty() in parseWriteCommand&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-23887&quot;&gt;&lt;del&gt;SERVER-23887&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;I constructed a OP_COMMAND request per the linked discussion and executed it against a mongod built off of master. This returned the error message, &quot;Command name parsed in OP_COMMAND message &apos;find&apos; doesn&apos;t match command name from object &apos;filter&apos;&quot;. This error message was introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-23887&quot; title=&quot;Invariant failure !cmd.isEmpty() in parseWriteCommand&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-23887&quot;&gt;&lt;del&gt;SERVER-23887&lt;/del&gt;&lt;/a&gt;, which was merged into 3.3.6. 3.2 still produces the error message mentioned in the linked discussion, &quot;Invalid collection name: football&quot;.&lt;/p&gt;</comment>
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