diff --git a/core/lib/Drupal/Core/Logger/LogMessageParser.php b/core/lib/Drupal/Core/Logger/LogMessageParser.php
index 8a67df12dc..73d71a5cb2 100644
--- a/core/lib/Drupal/Core/Logger/LogMessageParser.php
+++ b/core/lib/Drupal/Core/Logger/LogMessageParser.php
@@ -17,7 +17,7 @@ public function parseMessagePlaceholders(&$message, array &$context) {
       $has_psr3 = TRUE;
       // Transform PSR3 style messages containing placeholders to
       // \Drupal\Component\Utility\SafeMarkup::format() style.
-      $message = preg_replace('/\{(.*)\}/U', '@$1', $message);
+      $message = preg_replace('/\{([^\{}]*)\}/U', '@$1', $message);
     }
     foreach ($context as $key => $variable) {
       // PSR3 style placeholders.
diff --git a/core/modules/dblog/tests/src/Functional/DbLogTest.php b/core/modules/dblog/tests/src/Functional/DbLogTest.php
index 5b82282d6a..bd3fc9b058 100644
--- a/core/modules/dblog/tests/src/Functional/DbLogTest.php
+++ b/core/modules/dblog/tests/src/Functional/DbLogTest.php
@@ -119,6 +119,23 @@ public function testLogEventPage() {
   }
 
   /**
+   * Test that twig errors are displayed correctly.
+   */
+  public function testMessageParsing() {
+    $this->drupalLogin($this->adminUser);
+    // Log a common twig error with {{ }} and { } variables.
+    \Drupal::service('logger.factory')->get("php")
+      ->error('Incorrect parameter {{foo}} in path {path}: {value}',
+        ['foo' => 'bar', 'path' => '/baz', 'value' => 'horse']
+      );
+    // View the log page to verify it's correct.
+    $wid = \Drupal::database()->query('SELECT MAX(wid) FROM {watchdog}')->fetchField();
+    $this->drupalGet('admin/reports/dblog/event/' . $wid);
+    $this->assertSession()
+      ->responseContains('Incorrect parameter {bar} in path /baz: horse');
+  }
+
+  /**
    * Verifies setting of the database log row limit.
    *
    * @param int $row_limit
diff --git a/core/tests/Drupal/Tests/Core/Logger/LogMessageParserTest.php b/core/tests/Drupal/Tests/Core/Logger/LogMessageParserTest.php
index 395517f51f..e6e9ec8495 100644
--- a/core/tests/Drupal/Tests/Core/Logger/LogMessageParserTest.php
+++ b/core/tests/Drupal/Tests/Core/Logger/LogMessageParserTest.php
@@ -60,8 +60,8 @@ public function providerTestParseMessagePlaceholders() {
       ],
       // Message with double PSR3 style messages.
       [
-        ['message' => 'Test {with} two {encapsuled} strings', 'context' => ['with' => 'together', 'encapsuled' => 'awesome']],
-        ['message' => 'Test @with two @encapsuled strings', 'context' => ['@with' => 'together', '@encapsuled' => 'awesome']],
+        ['message' => 'Test {with} two {{encapsuled}} strings', 'context' => ['with' => 'together', 'encapsuled' => 'awesome']],
+        ['message' => 'Test @with two {@encapsuled} strings', 'context' => ['@with' => 'together', '@encapsuled' => 'awesome']],
       ],
     ];
   }