diff --git a/blocked-edges/4.2.23.yaml b/blocked-edges/4.2.23.yaml
new file mode 100644
index 000000000..7f25faba8
--- /dev/null
+++ b/blocked-edges/4.2.23.yaml
@@ -0,0 +1,8 @@
+# Upgrading any release to 4.2.22 or 4.2.23 will enable automated service ca
+# rotation without unique ca serial numbers. This will result in
+# condition reported in the linked bz, and only be recoverable by
+# manual service ca rotation.
+#
+# Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1810036
+to: 4.2.23
+from: .*