diff --git a/.changeset/fix-card-horizontal-security.md b/.changeset/fix-card-horizontal-security.md
new file mode 100644
index 000000000..62f1e63b9
--- /dev/null
+++ b/.changeset/fix-card-horizontal-security.md
@@ -0,0 +1,10 @@
+---
+"@clickhouse/click-ui": patch
+---
+
+Improved how the `CardHorizontal` component handles external links to keep end-users safe.
+
+### What's changed
+- **Link validation**: Only secure web links (starting with `http://` or `https://`) can be opened. This blocks potentially harmful links like `javascript:` or `data:` URIs that could be used in attacks.
+
+- **Safer tab opening**: When a link opens in a new tab, it now uses `noopener,noreferrer` to prevent the new page from accessing information about your application. See [MDN: Window.open() - Security considerations](https://developer.mozilla.org/en-US/docs/Web/API/Window/open#security_considerations) for more details.
diff --git a/src/components/CardHorizontal/CardHorizontal.test.tsx b/src/components/CardHorizontal/CardHorizontal.test.tsx
index 38f14a619..2c356161f 100644
--- a/src/components/CardHorizontal/CardHorizontal.test.tsx
+++ b/src/components/CardHorizontal/CardHorizontal.test.tsx
@@ -1,5 +1,6 @@
 import { screen } from '@testing-library/react';
 import { CardHorizontal, CardHorizontalProps } from '@/components/CardHorizontal';
+import { isValidHttpUrl } from '@/utils/url';
 import { renderCUI } from '@/utils/test-utils';
 
 describe('CardHorizontal Component', () => {
@@ -188,3 +189,32 @@ describe('CardHorizontal Component', () => {
     windowOpenSpy.mockRestore();
   });
 });
+
+describe('isValidHttpUrl', () => {
+  it('should return true for valid HTTP URLs', () => {
+    expect(isValidHttpUrl('http://example.com')).toBe(true);
+    expect(isValidHttpUrl('http://localhost:3000')).toBe(true);
+    expect(isValidHttpUrl('http://test.com/path')).toBe(true);
+  });
+
+  it('should return true for valid HTTPS URLs', () => {
+    expect(isValidHttpUrl('https://example.com')).toBe(true);
+    expect(isValidHttpUrl('https://clickhouse.com')).toBe(true);
+    expect(isValidHttpUrl('https://api.example.com/v1/test')).toBe(true);
+  });
+
+  it('should return false for invalid URLs', () => {
+    expect(isValidHttpUrl('javascript:alert(1)')).toBe(false);
+    expect(isValidHttpUrl('data:text/html,<script>alert(1)</script>')).toBe(false);
+    expect(isValidHttpUrl('file:///etc/passwd')).toBe(false);
+    expect(isValidHttpUrl('ftp://example.com')).toBe(false);
+    expect(isValidHttpUrl('about:blank')).toBe(false);
+    expect(isValidHttpUrl('vbscript:msgbox(1)')).toBe(false);
+  });
+
+  it('should return false for non-HTTP protocols', () => {
+    expect(isValidHttpUrl('')).toBe(false);
+    expect(isValidHttpUrl('not-a-url')).toBe(false);
+    expect(isValidHttpUrl('://invalid')).toBe(false);
+  });
+});
diff --git a/src/components/CardHorizontal/CardHorizontal.tsx b/src/components/CardHorizontal/CardHorizontal.tsx
index d00628c61..52a8faab7 100644
--- a/src/components/CardHorizontal/CardHorizontal.tsx
+++ b/src/components/CardHorizontal/CardHorizontal.tsx
@@ -4,6 +4,7 @@ import { Button } from '@/components/Button';
 import { Container } from '@/components/Container';
 import { Icon } from '@/components/Icon';
 import { CardHorizontalProps, CardSize, CardColor } from './CardHorizontal.types';
+import { isValidHttpUrl } from '@/utils/url';
 
 const Header = styled.div`
   max-width: 100%;
@@ -204,8 +205,8 @@ export const CardHorizontal = ({
     if (typeof onButtonClick === 'function') {
       onButtonClick(e);
     }
-    if (infoUrl && infoUrl.length > 0) {
-      window.open(infoUrl, '_blank');
+    if (infoUrl && infoUrl.length > 0 && isValidHttpUrl(infoUrl)) {
+      window.open(infoUrl, '_blank', 'noopener,noreferrer');
     }
   };
   return (
diff --git a/src/utils/url.ts b/src/utils/url.ts
new file mode 100644
index 000000000..876000e2b
--- /dev/null
+++ b/src/utils/url.ts
@@ -0,0 +1,8 @@
+export const isValidHttpUrl = (url: string): boolean => {
+  try {
+    const parsedUrl = new URL(url);
+    return parsedUrl.protocol === 'http:' || parsedUrl.protocol === 'https:';
+  } catch {
+    return false;
+  }
+};