diff --git a/solr/core/src/java/org/apache/solr/util/circuitbreaker/CircuitBreakerManager.java b/solr/core/src/java/org/apache/solr/util/circuitbreaker/CircuitBreakerManager.java
index 975ca4b124e..2f6f93dd736 100644
--- a/solr/core/src/java/org/apache/solr/util/circuitbreaker/CircuitBreakerManager.java
+++ b/solr/core/src/java/org/apache/solr/util/circuitbreaker/CircuitBreakerManager.java
@@ -137,7 +137,8 @@ public class CircuitBreakerManager implements PluginInfoInitialized {
    */
   @SuppressWarnings({"rawtypes"})
   public static CircuitBreakerManager build(PluginInfo pluginInfo) {
-    CircuitBreakerManager circuitBreakerManager = new CircuitBreakerManager(Boolean.parseBoolean(pluginInfo.attributes.get("enabled")));
+    boolean enabled = pluginInfo == null ? false : Boolean.parseBoolean(pluginInfo.attributes.getOrDefault("enabled", "false"));
+    CircuitBreakerManager circuitBreakerManager = new CircuitBreakerManager(enabled);
 
     circuitBreakerManager.init(pluginInfo);
 
@@ -147,19 +148,24 @@ public class CircuitBreakerManager implements PluginInfoInitialized {
   @VisibleForTesting
   @SuppressWarnings({"rawtypes"})
   public static CircuitBreaker.CircuitBreakerConfig buildCBConfig(PluginInfo pluginInfo) {
-    boolean enabled = Boolean.parseBoolean(pluginInfo.attributes.get("enabled"));
+    boolean enabled = false;
     boolean cpuCBEnabled = false;
     boolean memCBEnabled = false;
     int memCBThreshold = 100;
     int cpuCBThreshold = 100;
 
-    NamedList args = pluginInfo.initArgs;
 
-    if (args != null) {
-      cpuCBEnabled = args.getBooleanArg("cpuEnabled");
-      memCBEnabled = args.getBooleanArg("memEnabled");
-      memCBThreshold = Integer.parseInt((String) args.get("memThreshold"));
-      cpuCBThreshold = Integer.parseInt((String) args.get("cpuThreshold"));
+    if (pluginInfo != null) {
+      NamedList args = pluginInfo.initArgs;
+
+      enabled = Boolean.parseBoolean(pluginInfo.attributes.getOrDefault("enabled", "false"));
+
+      if (args != null) {
+        cpuCBEnabled = Boolean.parseBoolean(args._getStr("cpuEnabled", "false"));
+        memCBEnabled = Boolean.parseBoolean(args._getStr("memEnabled", "false"));
+        memCBThreshold = Integer.parseInt(args._getStr("memThreshold", "100"));
+        cpuCBThreshold = Integer.parseInt(args._getStr("cpuThreshold", "100"));
+      }
     }
 
     return new CircuitBreaker.CircuitBreakerConfig(enabled, memCBEnabled, memCBThreshold, cpuCBEnabled, cpuCBThreshold);