diff --git a/core/lib/Drupal/Core/Cache/DatabaseBackend.php b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
index d53c51c2fc..5b90c32660 100644
--- a/core/lib/Drupal/Core/Cache/DatabaseBackend.php
+++ b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
@@ -135,7 +135,16 @@ protected function prepareItem($cache, $allow_invalid) {
 
     // Unserialize and return the cached data.
     if ($cache->serialized) {
-      $cache->data = unserialize($cache->data);
+      $unserialized = @unserialize($cache->data);
+      // Make sure that corrupt items are properly identified and treated as
+      // cache misses. Otherwise, broken items will be treated as cache hits,
+      // and return a FALSE as the cached data.
+      if ($unserialized === FALSE) {
+        if ($cache->data != serialize(FALSE)) {
+          return FALSE;
+        }
+      }
+      $cache->data = $unserialized;
     }
 
     return $cache;
diff --git a/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTest.php b/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTest.php
index de8bbda553..0a5ee7e564 100644
--- a/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\KernelTests\Core\Cache;
 
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Cache\DatabaseBackend;
 
 /**
@@ -48,4 +49,30 @@ public function testSetGet() {
     $this->assertIdentical($cached_value_short, $backend->get($cid_short)->data, "Backend contains the correct value for short, non-ASCII cache id.");
   }
 
+  /**
+   * Tests getting a FALSE when requesting a corrupt cache item.
+   */
+  public function testCorruptCacheReturnsFalse() {
+    $corrupt_backend = $this->getCacheBackend('corrupt');
+    // Gets the CacheTagsChecksum tag validator.
+    $cache_tags_checksum = $this->container->get('cache_tags.invalidator.checksum');
+
+    // All DatabaseBackend cache tables should be prefixed with 'cache_'. As
+    // specified on \Drupal\Core\Cache\DatabaseBackend::__construct.
+    $cid = $this->randomMachineName();
+
+    // We insert a corrupted cache item into the cache table.
+    db_insert('cache_corrupt')->fields([
+      'cid' => $cid,
+      'created' => round(microtime(TRUE), 3),
+      'data' => substr(serialize($this->randomObject()), 0, -5),
+      'expire' => CacheBackendInterface::CACHE_PERMANENT,
+      'tags' => implode(' ', []),
+      'serialized' => 1,
+      'checksum' => $cache_tags_checksum->getCurrentChecksum([]),
+    ])->execute();
+
+    $this->assertFalse($corrupt_backend->get($cid), "Returns a FALSE when requesting the corrupt object.");
+  }
+
 }