جزئیات آسیب‌پذیری

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed() unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a Markup-derived class into a sandboxed template (typically to mark a chunk of HTML as safe) inadvertently exposes every public method of that subclass to template authors, regardless of the configured allowedMethods list. This issue has been patched in version 3.27.0.

• https://github.com/twigphp/Twig/security/advisories/GHSA-64jr-qjx4-w2fh x_refsource_CONFIRM
• https://security-tracker.debian.org/tracker/CVE-2026-46636 x_refsource_MISC
• https://security-tracker.debian.org/tracker/DSA-6311-1 x_refsource_MISC
• https://symfony.com/blog/cve-2026-46636-sandbox-filter-tag-and-function-allow-list-bypass-when-sandbox-state-changes-between-renders x_refsource_MISC
• http://github.com/twigphp/Twig/releases/tag/v3.27.0 x_refsource_MISC