CVE-2026-46639: Symfony Twig

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Twig is a template language for PHP. From 3.24.0 until 3.26.0, object-destructuring assignment compiles CoreExtension::getAttribute() with the sandbox argument hardcoded to false, disabling property and method policy checks and allowing an attacker with write access to a sandboxed Twig template to read public properties or invoke public getters on objects passed to the template engine. This issue is fixed in version 3.26.0.

Affected products

• Symfony Twig: from 3.24.0, before 3.26.0 (fixed in 3.26.0)

Published 2026-07-14. Last modified 2026-07-16.