Twig has a possible sandbox bypass
DescriptionUnder some circumstances, the sandbox security checks are not run which allows user-contributed templates to bypass the sandbox restrictions.The security issue happens when all these conditions are met:The sandbox is disabled globally;The sandbox is enabled via a sandboxed `include()` function which references a template name (like `included.twig`) and not a `Template` or `TemplateWrapper` instance;The included template has been loaded before the `include()` call but in a non-sandbox context (possible as the sandbox has been globally disabled).ResolutionThe patch ensures that the sandbox security checks are always run at runtime.CreditsWe would like to thank Fabien Potencier for reporting and fixing the issue.