From b3949843f94f3f5bafa4184db4e210f1243fc58f Mon Sep 17 00:00:00 2001
From: matlec <mathieu.lechat@sensiolabs.com>
Date: Fri, 5 Sep 2025 12:10:29 +0200
Subject: [PATCH] [Security] Fix `HttpUtils::createRequest()` when the base
 request is forwarded

---
 src/Symfony/Component/Security/Http/HttpUtils.php      |  6 ++++++
 .../Component/Security/Http/Tests/HttpUtilsTest.php    | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/Symfony/Component/Security/Http/HttpUtils.php b/src/Symfony/Component/Security/Http/HttpUtils.php
index 0163bb18a95ec..af0c732fd03d6 100644
--- a/src/Symfony/Component/Security/Http/HttpUtils.php
+++ b/src/Symfony/Component/Security/Http/HttpUtils.php
@@ -70,7 +70,13 @@ public function createRedirectResponse(Request $request, string $path, int $stat
      */
     public function createRequest(Request $request, string $path): Request
     {
+        if ($trustedProxies = Request::getTrustedProxies()) {
+            Request::setTrustedProxies([], Request::getTrustedHeaderSet());
+        }
         $newRequest = Request::create($this->generateUri($request, $path), 'get', [], $request->cookies->all(), [], $request->server->all());
+        if ($trustedProxies) {
+            Request::setTrustedProxies($trustedProxies, Request::getTrustedHeaderSet());
+        }
 
         static $setSession;
 
diff --git a/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php b/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
index e165a4df52c4d..c042b02c9ad5f 100644
--- a/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
+++ b/src/Symfony/Component/Security/Http/Tests/HttpUtilsTest.php
@@ -233,6 +233,16 @@ public static function provideSecurityRequestAttributes()
         ];
     }
 
+    public function testCreateRequestHandlesTrustedHeaders()
+    {
+        Request::setTrustedProxies(['127.0.0.1'], Request::HEADER_X_FORWARDED_PREFIX);
+
+        $this->assertSame(
+            'http://localhost/foo/',
+            (new HttpUtils())->createRequest(Request::create('/', server: ['HTTP_X_FORWARDED_PREFIX' => '/foo']), '/')->getUri(),
+        );
+    }
+
     public function testCheckRequestPath()
     {
         $utils = new HttpUtils($this->getUrlGenerator());