1 files changed, 8 insertions, 0 deletions
diff --git a/Http/RememberMe/AbstractRememberMeServices.php b/Http/RememberMe/AbstractRememberMeServices.php
index b14e36d..16f7831 100644
--- a/Http/RememberMe/AbstractRememberMeServices.php
+++ b/Http/RememberMe/AbstractRememberMeServices.php
@@ -268,9 +268,17 @@ abstract class AbstractRememberMeServices implements RememberMeServicesInterface
      * @param array $cookieParts
      *
      * @return string
+     *
+     * @throws \InvalidArgumentException When $cookieParts contain the cookie delimiter. Extending class should either remove or escape it.
      */
     protected function encodeCookie(array $cookieParts)
     {
+        foreach ($cookieParts as $cookiePart) {
+            if (false !== strpos($cookiePart, self::COOKIE_DELIMITER)) {
+                throw new \InvalidArgumentException(sprintf('$cookieParts should not contain the cookie delimiter "%s"', self::COOKIE_DELIMITER));
+            }
+        }
+
         return base64_encode(implode(self::COOKIE_DELIMITER, $cookieParts));
     }