diff --git a/security/vuxml/vuln.xml b/security/vuxml/vuln.xml
index d9e3b1da6c92..e904a88b6f9e 100644
--- a/security/vuxml/vuln.xml
+++ b/security/vuxml/vuln.xml
@@ -58,6 +58,41 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="f04f840d-0840-11ea-8d66-75d3253ef913">
+    <topic>libidn2 -- roundtrip check vulnerability</topic>
+    <affects>
+      <package>
+	<name>libidn2</name>
+	<range><lt>2.3.0</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<p>CVE list:</p>
+	<blockquote cite="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12290">
+	  <p>.</p>
+	  <p>GNU libidn2 before 2.2.0 fails to perform the roundtrip checks
+	    specified in RFC3490 Section 4.2 when converting A-labels to U-labels.
+	    This makes it possible in some circumstances for one domain to
+	    impersonate another. By creating a malicious domain that matches a
+	    target domain except for the inclusion of certain punycoded Unicode
+	    characters (that would be discarded when converted first to a Unicode
+	    label and then back to an ASCII label), arbitrary domains can be
+	    impersonated.</p>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://gitlab.com/libidn/libidn2/blob/master/NEWS</url>
+      <url>https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12290</url>
+      <cvename>CVE-2019-12290</cvename>
+    </references>
+    <dates>
+      <discovery>2019-11-14</discovery>
+      <entry>2019-11-18</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="f59af308-07f3-11ea-8c56-f8b156b6dcc8">
     <topic>GNU cpio -- multiple vulnerabilities</topic>
     <affects>
