CVE-2026-46640
Description
A flaw was found in Twig, a template language for PHP. An attacker with low privileges could exploit a vulnerability in the _self.(<string>) and import-alias dynamic attribute syntax. By concatenating a malicious string into a MacroReferenceExpression name without proper validation, the attacker can cause raw PHP code to be embedded and executed within the generated template. This could lead to arbitrary code execution on the server.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Integrity
Technical Impact: Execute Unauthorized Code or Commands
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
