diff --git a/src/core/server/elasticsearch/client/client_config.test.ts b/src/core/server/elasticsearch/client/client_config.test.ts
index e8083836d3c1ec..2beb07e6da5bc3 100644
--- a/src/core/server/elasticsearch/client/client_config.test.ts
+++ b/src/core/server/elasticsearch/client/client_config.test.ts
@@ -216,28 +216,14 @@ describe('parseClientOptions', () => {
         );
       });
 
-      it('adds auth to the nodes if both `username` and `password` are set', () => {
-        let options = parseClientOptions(
+      it('does not add auth to the nodes', () => {
+        const options = parseClientOptions(
           createConfig({
             username: 'user',
-            hosts: ['http://node-A:9200'],
-          }),
-          false
-        );
-        expect(options.nodes).toMatchInlineSnapshot(`
-                  Array [
-                    Object {
-                      "url": "http://node-a:9200/",
-                    },
-                  ]
-              `);
-
-        options = parseClientOptions(
-          createConfig({
             password: 'pass',
             hosts: ['http://node-A:9200'],
           }),
-          false
+          true
         );
         expect(options.nodes).toMatchInlineSnapshot(`
                   Array [
@@ -246,22 +232,6 @@ describe('parseClientOptions', () => {
                     },
                   ]
               `);
-
-        options = parseClientOptions(
-          createConfig({
-            username: 'user',
-            password: 'pass',
-            hosts: ['http://node-A:9200'],
-          }),
-          false
-        );
-        expect(options.nodes).toMatchInlineSnapshot(`
-                  Array [
-                    Object {
-                      "url": "http://user:pass@node-a:9200/",
-                    },
-                  ]
-              `);
       });
     });
     describe('when `scoped` is true', () => {
diff --git a/src/core/server/elasticsearch/client/client_config.ts b/src/core/server/elasticsearch/client/client_config.ts
index f24c0d86550b89..dab20edfc61ffe 100644
--- a/src/core/server/elasticsearch/client/client_config.ts
+++ b/src/core/server/elasticsearch/client/client_config.ts
@@ -93,7 +93,7 @@ export function parseClientOptions(
     };
   }
 
-  clientOptions.nodes = config.hosts.map((host) => convertHost(host, !scoped, config));
+  clientOptions.nodes = config.hosts.map((host) => convertHost(host));
 
   if (config.ssl) {
     clientOptions.ssl = generateSslConfig(
@@ -140,18 +140,10 @@ const generateSslConfig = (
   return ssl;
 };
 
-const convertHost = (
-  host: string,
-  needAuth: boolean,
-  { username, password }: ElasticsearchClientConfig
-): NodeOptions => {
+const convertHost = (host: string): NodeOptions => {
   const url = new URL(host);
   const isHTTPS = url.protocol === 'https:';
   url.port = url.port || (isHTTPS ? '443' : '80');
-  if (needAuth && username && password) {
-    url.username = username;
-    url.password = password;
-  }
 
   return {
     url,