Symfony version(s) affected

6.1.0 and above

Description

Hello,

I'm getting an error when sanitizing a text with urls. I have multiple allowed hosts in my config, and thus html sanitization for urls fails with access to undefined keys when callingUrlSanitizer->matchAllowedHostParts.

# src/Symfony/Component/HtmlSanitizer/TextSanitizer/UrlSanitizer.phpprivatestaticfunctionmatchAllowedHostParts(array$uriParts,array$trustedParts):bool    {// Check each chunk of the domain is validforeach ($trustedPartsas$key =>$trustedPart) {if ($uriParts[$key] !==$trustedPart) {returnfalse;            }        }returntrue;    }

How to reproduce

Here is a way to reproduce the issue through HtmlSanitizer unit tests :

1. Opensrc/Symfony/Component/HtmlSanitizer/Tests/TextSanitizer/UrlSanitizerTest.php
2. Add the following test case :

   yield ['input' =>'https://trusted.com/link.php','allowedSchemes' => ['http','https'],'allowedHosts' => ['subdomain.trusted.com','trusted.com'],'forceHttps' =>false,'allowRelative' =>false,'expected' =>'https://trusted.com/link.php',     ];

3. Test fails with :

4. Symfony\Component\HtmlSanitizer\Tests\TextSanitizer\UrlSanitizerTest::testSanitize with data setSwitched to submodules #27 ('https://trusted.com/link.php', array('http', 'https'), array('subdomain.trusted.com', 'trusted.com'), false, false, 'https://trusted.com/link.php')
   Undefined array key 2

/home/stoakes/dev/symfony/src/Symfony/Component/HtmlSanitizer/TextSanitizer/UrlSanitizer.php:135
/home/stoakes/dev/symfony/src/Symfony/Component/HtmlSanitizer/TextSanitizer/UrlSanitizer.php:123
/home/stoakes/dev/symfony/src/Symfony/Component/HtmlSanitizer/TextSanitizer/UrlSanitizer.php:63
/home/stoakes/dev/symfony/src/Symfony/Component/HtmlSanitizer/Tests/TextSanitizer/UrlSanitizerTest.php:24

### Possible SolutionI would check that key exists before accessing it. Roughly : ```phpprivate static function matchAllowedHostParts(array $uriParts, array $trustedParts): bool    {        // Check each chunk of the domain is valid        foreach ($trustedParts as $key => $trustedPart) {            if (array_key_exists($key, $uriParts) && $uriParts[$key] !== $trustedPart) {                return false;            }        }        return true;    }

Additional Context

No response