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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>
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<item>
            <title>[SERVER-55119] Create startup warning indicating that X.509 certificates without SANs are deprecated</title>
                <link>https://jira.mongodb.org/browse/SERVER-55119</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;X.509 certificates have had two mechanisms for defining the hostname they bind their public key to.&lt;br/&gt;
If a Subject Alternative Name is present in the certificate, the names defined there are considered to be bound.&lt;br/&gt;
If no SAN is present, but the certificate&apos;s subject name contains a Common Name component, and that Common Name was interpretable as a hostname, that hostname was considered bound.&lt;/p&gt;

&lt;p&gt;The Common Name has been considered deprecated by Subject Alternative Names, because Common Names don&apos;t, semantically, have anything to do with hostnames.&lt;/p&gt;

&lt;p&gt;Various cryptographic libraries are removing support for hostname validation via common names. Apple&apos;s TLS framework &lt;a href=&quot;https://support.apple.com/en-us/HT210176&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;stopped recognizing common names in iOS 13 and MacOS 10.15&lt;/a&gt;. &lt;a href=&quot;https://golang.org/doc/go1.15#commonname&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Go 1.15 no longer recognizes common names&lt;/a&gt; by default, and the tunable knob will be removed in a future release.&lt;/p&gt;

&lt;p&gt;Clients using these platforms will find themselves unable to connect to MongoDB servers which use X509 certificate whose hostnames are advertised by CommonName attributes.&lt;/p&gt;

&lt;p&gt;We should indicate that these style of certificates are deprecated and should be replaced to all administrators whose servers use them. We should parse the server&apos;s server certificate at startup and emit a startup warning if it doesn&apos;t have a SAN. We should backport this change to all supported releases.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1645878">SERVER-55119</key>
            <summary>Create startup warning indicating that X.509 certificates without SANs are deprecated</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="sergey.galtsev@mongodb.com">Sergey Galtsev</assignee>
                                    <reporter username="spencer.jackson@mongodb.com">Spencer Jackson</reporter>
                        <labels>
                    </labels>
                <created>Wed, 10 Mar 2021 16:30:53 +0000</created>
                <updated>Sun, 29 Oct 2023 21:56:26 +0000</updated>
                            <resolved>Mon, 29 Mar 2021 21:12:58 +0000</resolved>
                                                    <fixVersion>4.2.15</fixVersion>
                    <fixVersion>4.4.7</fixVersion>
                    <fixVersion>5.0.0-rc0</fixVersion>
                    <fixVersion>4.0.26</fixVersion>
                                    <component>Admin</component>
                    <component>Networking</component>
                    <component>Security</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3893122" author="xgen-internal-githook" created="Wed, 23 Jun 2021 02:15:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;sergey.galtsev&apos;, &apos;email&apos;: &apos;sergey.galtsev@mongodb.com&apos;, &apos;username&apos;: &apos;brushless-glitch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55119&quot; title=&quot;Create startup warning indicating that X.509 certificates without SANs are deprecated&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55119&quot;&gt;&lt;del&gt;SERVER-55119&lt;/del&gt;&lt;/a&gt; startup warning when X.509 certificates have no Subject Alternative Name&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/101d1310c57d7217334919f2ccb90ac4945d9d0d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/101d1310c57d7217334919f2ccb90ac4945d9d0d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3892133" author="xgen-internal-githook" created="Tue, 22 Jun 2021 17:49:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;sergey.galtsev&apos;, &apos;email&apos;: &apos;sergey.galtsev@mongodb.com&apos;, &apos;username&apos;: &apos;brushless-glitch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55119&quot; title=&quot;Create startup warning indicating that X.509 certificates without SANs are deprecated&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55119&quot;&gt;&lt;del&gt;SERVER-55119&lt;/del&gt;&lt;/a&gt; startup warning when X.509 certificates have no Subject Alternative Name&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ba3fa2f0101fb86ce31460b197bac5657ed36201&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ba3fa2f0101fb86ce31460b197bac5657ed36201&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3891553" author="xgen-internal-githook" created="Tue, 22 Jun 2021 15:24:15 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;sergey.galtsev&apos;, &apos;email&apos;: &apos;sergey.galtsev@mongodb.com&apos;, &apos;username&apos;: &apos;brushless-glitch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55119&quot; title=&quot;Create startup warning indicating that X.509 certificates without SANs are deprecated&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55119&quot;&gt;&lt;del&gt;SERVER-55119&lt;/del&gt;&lt;/a&gt; startup warning when X.509 certificates have no Subject Alternative Name (revert code removal)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0752572374c79198dc9fce439a18e89ea3c7c328&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0752572374c79198dc9fce439a18e89ea3c7c328&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3886335" author="xgen-internal-githook" created="Fri, 18 Jun 2021 04:26:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;sergey.galtsev&apos;, &apos;email&apos;: &apos;sergey.galtsev@mongodb.com&apos;, &apos;username&apos;: &apos;brushless-glitch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55119&quot; title=&quot;Create startup warning indicating that X.509 certificates without SANs are deprecated&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55119&quot;&gt;&lt;del&gt;SERVER-55119&lt;/del&gt;&lt;/a&gt; startup warning when X.509 certificates have no Subject Alternative Name&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/309f1ad1ce1bb745c956361e4cef29fc67289f1d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/309f1ad1ce1bb745c956361e4cef29fc67289f1d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3690145" author="xgen-internal-githook" created="Mon, 29 Mar 2021 21:35:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Sergey Galtsev&apos;, &apos;email&apos;: &apos;sergey.galtsev@mongodb.com&apos;, &apos;username&apos;: &apos;brushless-glitch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55119&quot; title=&quot;Create startup warning indicating that X.509 certificates without SANs are deprecated&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55119&quot;&gt;&lt;del&gt;SERVER-55119&lt;/del&gt;&lt;/a&gt; startup warning when X.509 certificates have no Subject Alternative Name&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/434ff838950d360bed1456c9307dd9c173323ac0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/434ff838950d360bed1456c9307dd9c173323ac0&lt;/a&gt;&lt;/p&gt;</comment>
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                            <customfieldvalue>Servers will now emit startup warnings when started with certificates which lack Subject Alternative Names. This behaviour is being backported, so that old Ops Manager deployments will have the opportunity to observe the warning, in advance of golang&amp;#39;s deprecation of these certificates.&lt;br/&gt;
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* TLS connections would now issue a startup warning when their certificates do not include Subject Alternative Name attribute</customfieldvalue>

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