diff --git a/Cache/Frontend/Adapter/SymfonyAdapterProvider.php b/Cache/Frontend/Adapter/SymfonyAdapterProvider.php
index ae9233ab01d..d07d0737752 100644
--- a/Cache/Frontend/Adapter/SymfonyAdapterProvider.php
+++ b/Cache/Frontend/Adapter/SymfonyAdapterProvider.php
@@ -350,12 +350,18 @@ class SymfonyAdapterProvider implements ResetAfterRequestInterface
         ?int $retryInterval,
         ?int $connectRetries
     ) {
+        $socketPath = $this->resolveUnixSocketPath($host);
+
         // Build optimized DSN with all connection parameters
         $dsnParams = [];
 
         // Add persistent connection parameters
         if ($persistent) {
             $dsnParams[] = 'persistent=1';
+            if ($socketPath !== null) {
+                // Keep persistent socket connections isolated by database and process.
+                $persistentId = ($persistentId ?? 'default') . ':' . $database . ':' . getmypid();
+            }
             if ($persistentId) {
                 $dsnParams[] = 'persistent_id=' . urlencode($persistentId);
             }
@@ -380,9 +386,15 @@ class SymfonyAdapterProvider implements ResetAfterRequestInterface
         }
 
         // Build base DSN
-        $baseDsn = $password
-            ? sprintf('redis://%s@%s:%d/%d', urlencode($password), $host, $port, $database)
-            : sprintf('redis://%s:%d/%d', $host, $port, $database);
+        if ($socketPath !== null) {
+            $address = sprintf('%s/%d', $socketPath, $database);
+            $encodedPassword = rawurlencode($password ?? '');
+        } else {
+            $address = sprintf('%s:%d/%d', $host, $port, $database);
+            $encodedPassword = urlencode($password ?? '');
+        }
+        $auth = $password ? $encodedPassword . '@' : '';
+        $baseDsn = 'redis://' . $auth . $address;
 
         // Append DSN parameters
         $dsn = $dsnParams ? $baseDsn . '?' . implode('&', $dsnParams) : $baseDsn;
@@ -391,6 +403,18 @@ class SymfonyAdapterProvider implements ResetAfterRequestInterface
         return RedisAdapter::createConnection($dsn);
     }
 
+    /**
+     * Resolve a Unix socket path from a backend server value.
+     *
+     * @param string $host
+     * @return string|null
+     */
+    private function resolveUnixSocketPath(string $host): ?string
+    {
+        $path = str_starts_with($host, 'unix://') ? substr($host, strlen('unix://')) : $host;
+        return str_starts_with($path, '/') ? $path : null;
+    }
+
     /**
      * Create ultra-optimized Predis connection (Symfony-compatible, maximum performance)
      *
@@ -413,12 +437,19 @@ class SymfonyAdapterProvider implements ResetAfterRequestInterface
         ?float $timeout,
         ?float $readTimeout
     ) {
-        $params = [
-            'scheme' => 'tcp',
-            'host' => $host,
-            'port' => $port,
-            'database' => $database,
-        ];
+        $socketPath = $this->resolveUnixSocketPath($host);
+        $params = $socketPath !== null
+            ? [
+                'scheme' => 'unix',
+                'path' => $socketPath,
+                'database' => $database,
+            ]
+            : [
+                'scheme' => 'tcp',
+                'host' => $host,
+                'port' => $port,
+                'database' => $database,
+            ];
 
         if ($password) {
             $params['password'] = $password;