CVE-2026-46640

A flaw was found in Twig, a template language for PHP. An attacker with low privileges could exploit a vulnerability in the self. and import-alias dynamic attribute syntax. By concatenating a malicious string into a MacroReferenceExpression name without proper validation, the attacker can cause r...

CVE-2026-46640 Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation

Twig is a template language for PHP. From 3.15.0 until 3.26.0, self. and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and...

PT-2026-42692

Name of the Vulnerable Software and Affected Versions Twig versions prior to 3.15.0 Description The obj.expr dynamic-attribute syntax allows the attribute to be an arbitrary expression. When the receiver is self or any % import % alias and the parenthesised expression is a string literal, the...