diff --git a/packages/devextreme-monorepo-tools/src/version-utils.ts b/packages/devextreme-monorepo-tools/src/version-utils.ts
index f4ee61855060..ce6861413919 100644
--- a/packages/devextreme-monorepo-tools/src/version-utils.ts
+++ b/packages/devextreme-monorepo-tools/src/version-utils.ts
@@ -7,6 +7,10 @@ export function validateVersion(version: string | undefined): string {
 }
 
 export function formatVersion(version: string | undefined): string | undefined {
+  if (version?.length && version.length > 1000) {
+    throw new Error("version string is too long");
+  }
+
   return version?.match(/(\d+\.\d+\.\d+)(\D|$)/)?.[1];
 }
 
diff --git a/packages/devextreme/testing/helpers/vectormaputils-tester.js b/packages/devextreme/testing/helpers/vectormaputils-tester.js
index 0d3fbd8820c6..210b1d845db1 100644
--- a/packages/devextreme/testing/helpers/vectormaputils-tester.js
+++ b/packages/devextreme/testing/helpers/vectormaputils-tester.js
@@ -67,7 +67,7 @@ require('http').createServer(function(request, response) {
     const info = getRequestInfo(request.url);
     const action = actions[info.action];
     response.writeHead(200, { 'Content-Type': 'text/plain' });
-    if(action) {
+    if(action && typeof action === 'function') {
         action(info.arg, callback);
     }
     function callback(data) {
diff --git a/packages/devextreme/testing/tests/DevExpress.core/utils.ajax.tests.js b/packages/devextreme/testing/tests/DevExpress.core/utils.ajax.tests.js
index ba94b4c13d08..c7039c11c0b4 100644
--- a/packages/devextreme/testing/tests/DevExpress.core/utils.ajax.tests.js
+++ b/packages/devextreme/testing/tests/DevExpress.core/utils.ajax.tests.js
@@ -404,9 +404,9 @@ QUnit.test('Send data with request (cached resources)', function(assert) {
         // https://github.com/jquery/jquery/issues/2658
         if(compareVersion($.fn.jquery, [3], 1) < 0) {
             if(testData[i].requestBody) {
-                testData[i].requestBody = testData[i].requestBody.replace('%20', '+');
+                testData[i].requestBody = testData[i].requestBody.replace(/%20/g, '+');
             }
-            testData[i].url = testData[i].url.replace('%20', '+');
+            testData[i].url = testData[i].url.replace(/%20/g, '+');
         }
         assert.equal(this.requests[i].url, testData[i].url, 'url for element ' + i + ' from test data');
         assert.equal(this.requests[i].requestBody, testData[i].requestBody, 'requestBody for element ' + i + ' from test data');
diff --git a/packages/devextreme/testing/tests/DevExpress.ui.widgets/loadIndicator.markup.tests.js b/packages/devextreme/testing/tests/DevExpress.ui.widgets/loadIndicator.markup.tests.js
index 43cecaf513af..e86e0f19aff6 100644
--- a/packages/devextreme/testing/tests/DevExpress.ui.widgets/loadIndicator.markup.tests.js
+++ b/packages/devextreme/testing/tests/DevExpress.ui.widgets/loadIndicator.markup.tests.js
@@ -21,7 +21,7 @@ const LOADINDICATOR_IMAGE = 'dx-loadindicator-image';
 
 const isIdenticalNamesInUrl = function(firstUrl, secondUrl) {
     let firstName = firstUrl.split('/');
-    firstName = firstName[firstName.length - 1].replace(')', '').replace('"', '');
+    firstName = firstName[firstName.length - 1].replace(/\)/g, '').replace(/"/g, '');
     let secondName = secondUrl.split('/');
     secondName = secondName[secondName.length - 1];
     return firstName === secondName;