From 0e69a2eeb8f75d4656ca42195af84f1deda87759 Mon Sep 17 00:00:00 2001
From: Jared Crawford <jaredcrawford@netflix.com>
Date: Thu, 30 Nov 2023 13:20:36 -0500
Subject: [PATCH] get_cn_from_csr should return None when no CN present

---
 lemur/certificates/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lemur/certificates/utils.py b/lemur/certificates/utils.py
index 18f1c9671c..6ac8c19665 100644
--- a/lemur/certificates/utils.py
+++ b/lemur/certificates/utils.py
@@ -56,6 +56,8 @@ def get_cn_from_csr(data):
         raise ValidationError("CSR presented is not valid.")
 
     common_name = request.subject.get_attributes_for_oid(x509.NameOID.COMMON_NAME)
+    if not common_name:
+        return None
     return common_name[0].value