diff --git a/changelog/_14430.txt b/changelog/_14430.txt
new file mode 100644
index 0000000000..a69ac0a8b3
--- /dev/null
+++ b/changelog/_14430.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+ui: Update KV max_version validation to disallow negative values.
+```
diff --git a/ui/app/forms/secrets/engine.ts b/ui/app/forms/secrets/engine.ts
index a1dcb4f48d..24b3814cee 100644
--- a/ui/app/forms/secrets/engine.ts
+++ b/ui/app/forms/secrets/engine.ts
@@ -20,8 +20,12 @@ export default class SecretsEngineForm extends MountForm<SecretsEngineFormData>
     // path validation is already defined on the MountForm class
     // add validation for kv max versions
     this.validations['kv_config.max_versions'] = [
-      { type: 'number', message: 'Maximum versions must be a number.' },
+      { type: 'number', options: { min: 0 }, message: 'Maximum versions must be a non-negative number.' },
       { type: 'length', options: { min: 1, max: 16 }, message: 'You cannot go over 16 characters.' },
+      {
+        validator: (data: SecretsEngineFormData) => !data?.kv_config?.max_versions?.toString().includes('.'),
+        message: 'Maximum versions must be a whole number.',
+      },
     ];
     // add validation for plugin_version when mounting external plugins
     this.validations['config.plugin_version'] = [
diff --git a/ui/app/forms/secrets/kv.ts b/ui/app/forms/secrets/kv.ts
index b7d241b03f..429a35a8d0 100644
--- a/ui/app/forms/secrets/kv.ts
+++ b/ui/app/forms/secrets/kv.ts
@@ -43,8 +43,12 @@ export default class KvForm extends Form<KvFormData> {
       },
     ],
     max_versions: [
-      { type: 'number', message: 'Maximum versions must be a number.' },
+      { type: 'number', options: { min: 0 }, message: 'Maximum versions must be a non-negative number.' },
       { type: 'length', options: { min: 1, max: 16 }, message: 'You cannot go over 16 characters.' },
+      {
+        validator: ({ max_versions }: KvForm['data']) => !max_versions?.toString().includes('.'),
+        message: 'Maximum versions must be a whole number.',
+      },
     ],
   };
 
diff --git a/ui/app/utils/forms/validators.js b/ui/app/utils/forms/validators.js
index 4c37c51796..6be134cbf6 100644
--- a/ui/app/utils/forms/validators.js
+++ b/ui/app/utils/forms/validators.js
@@ -26,10 +26,12 @@ export const length = (value, { nullable = false, min, max } = {}) => {
   return nullable;
 };
 
-export const number = (value, { nullable = false } = {}) => {
+export const number = (value, { nullable = false, min, max } = {}) => {
   // since 0 is falsy, !value returns true even though 0 is a valid number
   if (!value && value !== 0) return nullable;
-  return !isNaN(value);
+  const underMin = isPresent(min) ? value < min : false;
+  const overMax = isPresent(max) ? value > max : false;
+  return !isNaN(value) && !underMin && !overMax;
 };
 
 export const containsWhiteSpace = (value) => {
diff --git a/ui/tests/acceptance/secrets/backend/kv/kv-v2-workflow-create-test.js b/ui/tests/acceptance/secrets/backend/kv/kv-v2-workflow-create-test.js
index b8963d7c0f..46fe32d4ef 100644
--- a/ui/tests/acceptance/secrets/backend/kv/kv-v2-workflow-create-test.js
+++ b/ui/tests/acceptance/secrets/backend/kv/kv-v2-workflow-create-test.js
@@ -180,10 +180,17 @@ module('Acceptance | kv-v2 workflow | secret and version create', function (hook
       // max_versions validation
       await fillIn(FORM.inputByAttr('max_versions'), 'seven');
       await click(FORM.saveBtn);
-      assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('Maximum versions must be a number.');
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a non-negative number.');
       await fillIn(FORM.inputByAttr('max_versions'), '99999999999999999');
       await click(FORM.saveBtn);
       assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('You cannot go over 16 characters.');
+      await fillIn(FORM.inputByAttr('max_versions'), '1.23');
+      await click(FORM.saveBtn);
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a whole number.');
       await fillIn(FORM.inputByAttr('max_versions'), '7');
 
       // Fill in other metadata
@@ -436,10 +443,17 @@ module('Acceptance | kv-v2 workflow | secret and version create', function (hook
       // max_versions validation
       await fillIn(FORM.inputByAttr('max_versions'), 'seven');
       await click(FORM.saveBtn);
-      assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('Maximum versions must be a number.');
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a non-negative number.');
       await fillIn(FORM.inputByAttr('max_versions'), '99999999999999999');
       await click(FORM.saveBtn);
       assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('You cannot go over 16 characters.');
+      await fillIn(FORM.inputByAttr('max_versions'), '1.23');
+      await click(FORM.saveBtn);
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a whole number.');
       await fillIn(FORM.inputByAttr('max_versions'), '7');
 
       // Fill in other metadata
@@ -583,10 +597,17 @@ module('Acceptance | kv-v2 workflow | secret and version create', function (hook
       // max_versions validation
       await fillIn(FORM.inputByAttr('max_versions'), 'seven');
       await click(FORM.saveBtn);
-      assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('Maximum versions must be a number.');
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a non-negative number.');
       await fillIn(FORM.inputByAttr('max_versions'), '99999999999999999');
       await click(FORM.saveBtn);
       assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('You cannot go over 16 characters.');
+      await fillIn(FORM.inputByAttr('max_versions'), '1.23');
+      await click(FORM.saveBtn);
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a whole number.');
       await fillIn(FORM.inputByAttr('max_versions'), '7');
 
       // Fill in other metadata
@@ -750,10 +771,17 @@ module('Acceptance | kv-v2 workflow | secret and version create', function (hook
       // max_versions validation
       await fillIn(FORM.inputByAttr('max_versions'), 'seven');
       await click(FORM.saveBtn);
-      assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('Maximum versions must be a number.');
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a non-negative number.');
       await fillIn(FORM.inputByAttr('max_versions'), '99999999999999999');
       await click(FORM.saveBtn);
       assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('You cannot go over 16 characters.');
+      await fillIn(FORM.inputByAttr('max_versions'), '1.23');
+      await click(FORM.saveBtn);
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a whole number.');
       await fillIn(FORM.inputByAttr('max_versions'), '7');
 
       // Fill in other metadata
@@ -976,10 +1004,17 @@ module('Acceptance | kv-v2 workflow | secret and version create', function (hook
       // max_versions validation
       await fillIn(FORM.inputByAttr('max_versions'), 'seven');
       await click(FORM.saveBtn);
-      assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('Maximum versions must be a number.');
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a non-negative number.');
       await fillIn(FORM.inputByAttr('max_versions'), '99999999999999999');
       await click(FORM.saveBtn);
       assert.dom(GENERAL.validationErrorByAttr('max_versions')).hasText('You cannot go over 16 characters.');
+      await fillIn(FORM.inputByAttr('max_versions'), '1.23');
+      await click(FORM.saveBtn);
+      assert
+        .dom(GENERAL.validationErrorByAttr('max_versions'))
+        .hasText('Maximum versions must be a whole number.');
       await fillIn(FORM.inputByAttr('max_versions'), '7');
 
       // Fill in other metadata
diff --git a/ui/tests/integration/components/kv/page/kv-page-metadata-edit-test.js b/ui/tests/integration/components/kv/page/kv-page-metadata-edit-test.js
index 69c7c408a9..2a443f8583 100644
--- a/ui/tests/integration/components/kv/page/kv-page-metadata-edit-test.js
+++ b/ui/tests/integration/components/kv/page/kv-page-metadata-edit-test.js
@@ -122,7 +122,10 @@ module('Integration | Component | kv-v2 | Page::Secret::Metadata::Edit', functio
     await click(FORM.saveBtn);
     assert
       .dom(FORM.validationError('max_versions'))
-      .hasText('Maximum versions must be a number.', 'Validation message is shown for max_versions');
+      .hasText(
+        'Maximum versions must be a non-negative number.',
+        'Validation message is shown for max_versions'
+      );
 
     await click(FORM.cancelBtn);
     assert.true(this.onCancel.called, 'onCancel action is called');