diff --git a/src/Symfony/Component/Validator/Constraints/UrlValidator.php b/src/Symfony/Component/Validator/Constraints/UrlValidator.php
index 77c39e5f5ec40..1c435ff3e1d20 100644
--- a/src/Symfony/Component/Validator/Constraints/UrlValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/UrlValidator.php
@@ -23,7 +23,7 @@ class UrlValidator extends ConstraintValidator
{
const PATTERN = '~^
(%s):// # protocol
- (([\_\.\pL\pN-]+:)?([\_\.\pL\pN-]+)@)? # basic auth
+ (((?:[\_\.\pL\pN-]|%%[0-9A-Fa-f]{2})+:)?((?:[\_\.\pL\pN-]|%%[0-9A-Fa-f]{2})+)@)? # basic auth
(
([\pL\pN\pS\-\_\.])+(\.?([\pL\pN]|xn\-\-[\pL\pN-]+)+\.?) # a domain name
| # or
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/UrlValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/UrlValidatorTest.php
index 818ae19dfc905..2dcdf2e0330e6 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/UrlValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/UrlValidatorTest.php
@@ -153,6 +153,8 @@ public function getValidUrls()
['http://user.name:pass.word@symfony.com'],
['http://user-name@symfony.com'],
['http://user_name@symfony.com'],
+ ['http://u%24er:password@symfony.com'],
+ ['http://user:pa%24%24word@symfony.com'],
['http://symfony.com?'],
['http://symfony.com?query=1'],
['http://symfony.com/?query=1'],
@@ -251,6 +253,8 @@ public function getInvalidUrls()
['http://:password@@symfony.com'],
['http://username:passwordsymfony.com'],
['http://usern@me:password@symfony.com'],
+ ['http://nota%hex:password@symfony.com'],
+ ['http://username:nota%hex@symfony.com'],
['http://example.com/exploit.html?'],
['http://example.com/exploit.html?hel lo'],
['http://example.com/exploit.html?not_a%hex'],
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